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  • Retsch : Molino de cuchillas : GM 300 : Informaciones & Descarga
    an From muesli to streaky bacon Complete homogenization of complex samples The diversity of foodstuffs with their often very different product properties represents a real challenge for food testing laboratories Before the actual analysis the sample materials which can vary strongly with regards to hardness and moisture need to be homogenized and reduced to a sufficiently small particle size RETSCH s GRINDOMIX knife mills are the ideal tools to meet the complex requirements of the sample preparation of food The model GM 200 has proven itself for the homogenization of small sample volumes of up to 700 ml For larger volumes RETSCH offers the GM 300 model with a grinding chamber volume of 5 000 ml Sample Preparation for HPLC Analysis of Confectionery Like all foodstuff confectionery is subjected to strict quality controls Parameters of interest are for example nutritional value moisture or fat content or the quantification of particular ingredients such as vitamins or alkaloids Typically chromatographic methods like High Performance Liquid Chromatography HPLC are used to analyze food samples Most analytical methods only require a few milligram or gram of sample the previous size reduction homogenization process ensures that the small analysis sample is representative of the entire laboratory sample thus allowing for reproducible results Moreover homogenized samples show a much better extraction behavior Detection of genetically modified organisms GMO in food and feed Genetic engineering opens up new possibilities in areas such as medical research development of alternative fuels or global food supply It is used to modify the characteristics of plants in order to increase the crop yield improve defense against predators pesticides or draught but also increase concentrations of essential vitamins However with regards to food the use of genetic engineering is a fairly controversial issue Moreover food and feed stuff are subject to rigorous quality control processes to prevent humans and animals from potential harm The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Renewable energies on the rise Sample preparation of vegetable based raw materials with laboratory mills Thanks to the increasing usage of biomass as a source of energy the analysis of these materials in the context of R D and quality control gains importance too Due to the complex properties of plant materials adequate sample preparation can be rather a challenge Sample Preparation in the Pharmaceutical Industry In the

    Original URL path: http://www.retsch.es/es/productos/molienda/molino-de-cuchillas/gm-300/informaciones-descarga (2015-09-25)
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  • Retsch : Molinos de mortero : RM 200 : Informaciones & Descarga
    en pdf Haga una selección pdf Inglés 51 KB 12145 nacl en pdf Haga una selección pdf Inglés 52 KB 11106 soil en pdf Haga una selección pdf Inglés 51 KB 11266 quartz en pdf Haga una selección pdf Inglés 52 KB Informes técnicos 8 Tan fina como sea necesario Para el análisis de muestras sólidas existe una gran variedad de métodos entre los que pueden mencionarse la AAS ICP NIR y FRX Todos estos métodos tienen algo en común y es que la muestra a analizar deber ser homogeneizada y tener una granulometría determinada que variará en función del método analítico empleado La homogeneización y reducción de la muestra a la granulometría indicada se realiza normalmente con trituradoras y molinos de laboratorio adecuados para cada caso La Fragmentación Por lo general se asocia a la noción fragmentación el machacamiento de sustancias sólidas mediante fuerza mecánica Pero también la división de líquidos en gotas o de gases en bollas representa un proceso de fragmentación From cacao tree to chocolate bar The way from the cacao tree to the chocolate bar is a long one Due to the many processing stages harvest fermentation drying cleaning roasting pre crushing and finally grinding the cocoa nibs to liquor from which cocoa powder and cocoa butter are pressed there may be significant differences in the quality The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Sample Preparation in the Pharmaceutical Industry In the analysis of solid material the popular adage that bigger is better certainly does not apply The goal is to produce particles that are sufficiently small to satisfy the requirements of the analysis while ensuring that the final sample accurately represents the original material The particles of interest to the analyst generally range from 10 µm to 2mm Additionally there are many application where even finer sizes are needed One example are active ingredients where it is necessary to grind in the submicron range Finally for DNA or RNA extraction mechanical cell lysis is well established Materials differ widely in their composition and physical properties Hence there are many different grinding principles that can be applied and this together with other variables such as initial feed or lump size fineness needed and amount of sample available results in a wide range of models available to the researcher Representative Analysis Results

    Original URL path: http://www.retsch.es/es/productos/molienda/molinos-de-mortero/rm-200/informaciones-descarga (2015-09-25)
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  • Retsch : Molinos de discos : RS 200 : Informaciones & Descarga
    kann Stabilisotopenanalyse in der Forensik Geographische Herkunftsbestimmung von unbekannten Toten Die Anwendung stabilisotopenanalytischer Methoden als Werkzeug zur Aufklärung von unklaren Tatbeständen hat sich in der Forensik etabliert Am Institut für Rechtsmedizin der Universität München gehen Anfragen zu Erstellung von Isotopengutachten aus dem In und Ausland ein Der Großteil der Isotopengutachten beantwortet die Frage nach der geogra phischen Herkunft und den Aufenthaltsorten unbekannter Toter Die Ergebnisse der Analyse der Stabilisotopenhäufigkeitsverhältnisse von Bio und Geoelementen in Körpergeweben lie fern Ansatzpunkte für polizeiliche Ermittlungen Die Grundidee der geographischen Her kunftszuordnung von Personen mittels Isotopenanalyse liegt in der Beobachtung dass über Ernährung und Umwelt unterschiedliche Isotopenverhältnisse chemischer Elemente in den Körper eingebaut werden die eine regionale Komponente aufweisen Tabelle Menschliche Gewebe zeigen dann ebenso bestimmte Isotopensignaturen über die sich Rückschlüsse auf die Aufenthaltsorte und die Ernährungsweise des Konsumenten ziehen lassen Probenvorbereitung von Böden Bestimmung von anorganischen Inhaltsstoffen in Bodenproben In Industrienationen mit hoher Besiedlungsdichte und einem begrenzten Angebot an Industrie und Gewerbegebieten unterliegt die Nutzung von Gebäuden und Flächen einem dauerhaften Wandel Daher sind Bodenuntersuchungen für Investoren Behörden und Privatpersonen unumgänglich Umweltanalytische Untersuchungen bilden die Basis um Gefährdungen aufzuzeigen und damit Menschen und eingesetztes Kapital zu schützen Bei SGS Institut Fresenius in Herten werden bis zu 400 Bodenproben am Tag aufgearbeitet und analysiert Hierbei wird sehr genau darauf geachtet dass geltende Normen und Verordnungen eingehalten werden In Deutschland gilt die BbodSchV wobei die Analytik auch auf die Vorschriften anderer Länder angepasst wird The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Representative Analysis Results Require Adequate Sample Preparation A faultless and comparable analysis is closely linked to an accurate sample handling Only a sample representative of the initial material can provide meaningful analysis results Rotating dividers and rotary tube dividers are an important means to ensure the representativeness of a sample and thus the reproducibility of the analysis Correct sample handling consequently minimizes the probability of a production stop due to incorrect analysis results Thus correct sample handling is the key to effective quality control Quality control of cement Quality control is an important aspect of cement production Sample preparation is an essential part of it because only a representative and reproducible processing of the sample material ensures reliable and meaningful analysis results RETSCH offers a range of instruments for dividing crushing grinding and sizing all materials which are involved in the

    Original URL path: http://www.retsch.es/es/productos/molienda/molinos-de-discos/rs-200/informaciones-descarga (2015-09-25)
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  • Retsch : Molinos de discos : DM 200 : Informaciones & Descarga
    de pruebas de laboratorio 20 11149 minerals en pdf Haga una selección pdf Inglés 52 KB 11858 minerals en pdf Haga una selección pdf Inglés 55 KB 10351 minerals en pdf Haga una selección pdf Inglés 37 KB 11251 minerals en pdf Haga una selección pdf Inglés 51 KB 10669 coal en pdf Haga una selección pdf Inglés 52 KB 11221 graphite phenolic binder en pdf Haga una selección pdf Inglés 127 KB 13965 en pdf Haga una selección pdf Inglés 0 B 10829 cement clinker en pdf Haga una selección pdf Inglés 52 KB 11879 metal alloy en pdf Haga una selección pdf Inglés 172 KB 10956 cinder en pdf Haga una selección pdf Inglés 51 KB 10823 minerals en pdf Haga una selección pdf Inglés 52 KB 10618 metals en pdf Haga una selección pdf Inglés 37 KB 11161 glass en pdf Haga una selección pdf Inglés 51 KB 10842 coal en pdf Haga una selección pdf Inglés 53 KB 10293 cement clinker en pdf Haga una selección pdf Inglés 37 KB 11691 silicon en pdf Haga una selección pdf Inglés 52 KB 10868 minerals en pdf Haga una selección pdf Inglés 38 KB 11247 clinker en pdf Haga una selección pdf Inglés 37 KB 10373 minerals en pdf Haga una selección pdf Inglés 53 KB 11692 metals en pdf Haga una selección pdf Inglés 52 KB Informes técnicos 5 Tan fina como sea necesario Para el análisis de muestras sólidas existe una gran variedad de métodos entre los que pueden mencionarse la AAS ICP NIR y FRX Todos estos métodos tienen algo en común y es que la muestra a analizar deber ser homogeneizada y tener una granulometría determinada que variará en función del método analítico empleado La homogeneización y reducción de la muestra a la granulometría indicada se realiza normalmente con trituradoras y molinos de laboratorio adecuados para cada caso La Fragmentación Por lo general se asocia a la noción fragmentación el machacamiento de sustancias sólidas mediante fuerza mecánica Pero también la división de líquidos en gotas o de gases en bollas representa un proceso de fragmentación The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Down to the bone Use of laboratory grinders for size reduction of human bones and bioceramics Bone implants and substances for bone regeneration are used in surgery to

    Original URL path: http://www.retsch.es/es/productos/molienda/molinos-de-discos/dm-200/informaciones-descarga (2015-09-25)
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  • Retsch : Molinos de discos : DM 400 : Informaciones & Descarga
    Descarga Datos para pedidos solicitud de oferta Molinos de bolas Tamizado Asistencia Home Productos Molienda Molinos de discos DM 400 Informaciones Descarga Molino de discos DM 400 Funcionamiento características Informaciones Descarga Datos para pedidos solicitud de oferta Folletos 3 General Catalogue 2015 Haga una selección pdf Inglés 12 MB pdf Alemán 13 MB Gama de productos Haga una selección pdf Español 3 MB pdf Francés 3 MB pdf Italiano 3 MB pdf Ruso 3 MB pdf Chino 4 MB pdf Árabe 4 MB pdf Japonés 5 MB pdf Checo 442 KB pdf Holandés 3 MB pdf Polaco 3 MB pdf Portugués 3 MB pdf Húngaro 4 MB pdf Búlgaro 4 MB Molinos de mortero y molinos de discos RM 200 RS 200 DM 200 Haga una selección pdf Español 586 KB pdf Francés 637 KB pdf Italiano 3 MB pdf Ruso 591 KB pdf Chino 1 MB pdf Japonés 1 MB pdf Checo 6 MB pdf Polaco 1 MB pdf Portugués 865 KB Información técnica 1 Material Analyses of Equipment Accessories Haga una selección pdf Inglés 328 KB Manuales 1 DM 400 Haga una selección pdf Español 2 MB pdf Inglés 2 MB pdf Alemán 2 MB pdf Francés 2

    Original URL path: http://www.retsch.es/es/productos/molienda/molinos-de-discos/dm-400/informaciones-descarga (2015-09-25)
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  • Retsch : Molinos de bolas : Emax : Informaciones & Descarga
    2 MB Folletos 1 Ball Mills Haga una selección pdf Inglés 904 KB pdf Alemán 897 KB pdf Ruso 906 KB pdf Japonés 944 KB Información técnica 1 Material Analyses of Equipment Accessories Haga una selección pdf Inglés 328 KB Informes de pruebas de laboratorio 9 15872 en pdf Haga una selección pdf Inglés 253 KB 15211 en pdf Haga una selección pdf Inglés 92 KB 15417 en pdf Haga una selección pdf Inglés 64 KB 15210 en pdf Haga una selección pdf Inglés 0 B 15447 en pdf Haga una selección pdf Inglés 0 B 15402 en pdf Haga una selección pdf Inglés 0 B 15352 en pdf Haga una selección pdf Inglés 0 B 15318 en pdf Haga una selección pdf Inglés 0 B 15190 en pdf Haga una selección pdf Inglés 0 B Informes técnicos 5 Emax La Revolución en la Molienda Ultrafina El Emax es un molino de bolas completamente nuevo específicamente diseñado para moliendas de gran intensidad Con una sensacional velocidad de 2 000 rpm que no ha sido alcanzada hasta ahora por ningún otro molino de bolas del mercado y unos recipientes de molienda de forma especial su aporte de energía para la trituración es extremadamente alto Este molino combina de forma extraordinaria los mecanismos de impacto y fricción con el movimiento circular de los recipientes de molienda lo cual permite obtener partículas ultrafinas en tiempos extremadamente cortos Su novedoso sistema de refrigeración por agua absorbe la energía calorífica excedente de manera que la muestra no se recalienta ni siquiera con tiempos de molienda largos Kolloidvermahlungen zur Erzeugung von Nanopartikeln Nanoteilchen d h Partikel mit einem Durchmesser von weniger als 100 Nanometer werden seit vielen Jahren von Wissenschaftlern erforscht Zum einen lassen sie sich im Bottom up Verfahren aus Atomen oder Molekülen synthetisieren Im Top Down Verfahren hingegen werden größere Partikel z B mit Hilfe von Labormühlen zerkleinert Kleine Partikel weisen durch das extrem vergrößerte Verhältnis von Oberfläche zu Volumen erhöhte Oberflächenladungen auf so dass die Partikel elektrostatisch zueinander gezogen werden Daher können Nanopartikel nur durch Nassvermahlung Kolloidvermahlung erzeugt werden Emax faster finer cooler The biggest challenge when developing a high energy ball mill is controlling the temperature The very high energy produced by ball milling leads to an extreme heat increase inside the grinding jars RETSCH solved this problem by creating an innovative integrated water cooling system Grinding breaks for cooling which are unavoidable in conventional ball mills even after only 30 minutes grinding at moderate speed are usually not necessary when using the High Energy Ball Mill Emax Ultrafine Grinding with Laboratory Ball Mills How are nano particles produced The Bottom Up method synthesizes particles from atoms or molecules The Top Down method involves reducing the size of larger particles to nanoscale for example with laboratory mills Due to their significantly enlarged surface in relation to the volume small particles are drawn to each other by their electrostatic charges Nano particles are produced by colloidal grinding which involves dispersion of the particles

    Original URL path: http://www.retsch.es/es/productos/molienda/molinos-de-bolas/emax/informaciones-descarga (2015-09-25)
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  • Retsch : Molinos de bolas : MM 200 : Informaciones & Descarga
    Anreicherung von Pestiziden in der Nahrungskette sind gesundheitliche Schäden nicht auszuschließen was eine strenge Kontrolle von Böden auf entsprechende Rückstände notwendig macht The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Sample Preparation in the Pharmaceutical Industry In the analysis of solid material the popular adage that bigger is better certainly does not apply The goal is to produce particles that are sufficiently small to satisfy the requirements of the analysis while ensuring that the final sample accurately represents the original material The particles of interest to the analyst generally range from 10 µm to 2mm Additionally there are many application where even finer sizes are needed One example are active ingredients where it is necessary to grind in the submicron range Finally for DNA or RNA extraction mechanical cell lysis is well established Materials differ widely in their composition and physical properties Hence there are many different grinding principles that can be applied and this together with other variables such as initial feed or lump size fineness needed and amount of sample available results in a wide range of models available to the researcher Recycled glass a valuable resource Today recycled glass is the most important resource for the glass industry The processed glass can be reintroduced to the melting process any number of times and made into new products In Germany currently up to 95 of recycled glass is used for producing glass which has various advantages energy saving less consumption of primary raw materials such as lime and silica sand and the reduction of landfill costs for waste glass Representative Analysis Results Require Adequate Sample Preparation A faultless and comparable analysis is closely linked to an accurate sample handling Only a sample representative of the initial material can provide meaningful analysis results Rotating dividers and rotary tube dividers are an important means to ensure the representativeness of a sample and thus the reproducibility of the analysis Correct sample handling consequently minimizes the probability of a production stop due to incorrect analysis results Thus correct sample handling is the key to effective quality control What hair reveals The detection of illegal drugs and pharmaceuticals is important in areas such as forensic science traffic or competitive sports Chemical substances can be detected in blood saliva urine and hair the latter having the advantage of storing the substances

    Original URL path: http://www.retsch.es/es/productos/molienda/molinos-de-bolas/molinos-mezclador-mm-200/informaciones-descarga (2015-09-25)
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  • Retsch : Molinos de bolas : MM 400 : Informaciones & Descarga
    Probenvorbereitung von Feststoffen für die Röntgenfluoreszenz Aufgrund der Einfachheit der eigentlichen RFA Messung wird häufig der Aspekt der optimalen Probenvorbereitung übersehen was sich dann in mangelnder Reproduzierbarkeit bis hin zu falschen Ergebnissen auswirken kann The effect of grinding tools on metal contamination Reliable and accurate analysis results can only be guaranteed by reproducible sample preparation This consists of transforming a laboratory sample into a representative part sample with homogeneous analytical fineness Retsch offers a comprehensive range of the most modern mills and crushers for coarse fine and ultra fine size reduction of almost any material The product range also comprises a wide choice of grinding tools and accessories which helps to ensure contamination free preparation of a great variety of sample materials The selection of the correct grinding tool depends on the sample material and the subsequent method of analysis Different grinding tools have different characteristics such as required energy input hardness or wear resistance Sample Preparation in the Pharmaceutical Industry In the analysis of solid material the popular adage that bigger is better certainly does not apply The goal is to produce particles that are sufficiently small to satisfy the requirements of the analysis while ensuring that the final sample accurately represents the original material The particles of interest to the analyst generally range from 10 µm to 2mm Additionally there are many application where even finer sizes are needed One example are active ingredients where it is necessary to grind in the submicron range Finally for DNA or RNA extraction mechanical cell lysis is well established Materials differ widely in their composition and physical properties Hence there are many different grinding principles that can be applied and this together with other variables such as initial feed or lump size fineness needed and amount of sample available results in a wide range of models available to the researcher Recycled glass a valuable resource Today recycled glass is the most important resource for the glass industry The processed glass can be reintroduced to the melting process any number of times and made into new products In Germany currently up to 95 of recycled glass is used for producing glass which has various advantages energy saving less consumption of primary raw materials such as lime and silica sand and the reduction of landfill costs for waste glass Sample preparation for pesticide residue analysis with the QuEChERS method The so called QuEChERS method quick easy cheap effective rugged and safe was developed by Michelangelo Anastassiades Chemical and Veterinary Investigation Office CVUA Stuttgart Germany to make sample preparation to pesticide residue analysis more efficient It basically consists of three steps Homogenization Extraction Analysis Test series have proved that the analysis results obtained with the QuEChERS method can easily compare with more common methods such as DFG S19 Various RETSCH instruments are used for the sample preparation process Representative Analysis Results Require Adequate Sample Preparation A faultless and comparable analysis is closely linked to an accurate sample handling Only a sample representative of the

    Original URL path: http://www.retsch.es/es/productos/molienda/molinos-de-bolas/molinos-mezclador-mm-400/informaciones-descarga (2015-09-25)
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