Ultraodstredivý mlyn ZM 200
Technické správy (25)
Toxic analyses of biological samples
Cryogenic grinding facilitates the preparation of animal samples
Milling of Samples in a Fertilizer Laboratory
The fertilizer laboratory of the Division of Regulatory Services at the University of Kentucky uses the Retsch ZM 200 ultra centrifugal mill for milling fertilizer samples.
Cement - representative sample preparation is important
To produce high-quality cement, the mineralogical and chemical composition of raw materials as well as intermediate and finished products has to be determined. At each stage of the production, samples have to be taken, processed and analysed to ensure quality control without gaps. Retsch offers a range of instruments that are used for sample preparation during the complete production process, from the quarrying of the raw materials to the final product. The typical sample preparation process involves preliminary size reduction, sample division and fine size reduction before the sample can be submitted to further analyses....
Tracking down hazardous substances (RoHS/WEEE)
Preparing electronic waste for obtaining representative analytical samples.
A solution for converting an electrical appliance into a meaningful analytical sample is described using a remote-controlled toy car as an example.
Size reduction within the context of sample preparation
In general “size reduction” is taken to mean the disintegration of solid substances by mechanical forces without altering their state.
Sample Preparation of Electronic Scrap in the Context of RoHS and WEEE
Since August 2004 new EU directives for the disposal of used electrical and electronic appliances as well as the restricted use of certain hazardous substances in these devices have become effective.
Bigger is not Better
There is a trend towards smaller samples that have more controlled particle size and yet remain representative of the material being analyzed.
Sample Preparation of Plastics for X-Ray-Fluorescence Analysis
The elemental analysis of plastics has become more and more important. EC directive 91/338/EWG regulates the ban of cadmium in PVC, EC directive 94/62/EC defines limits for cadmium, lead, chromium and mercury in packing materials and EC directive 2000/53/EC defines limits for the same elements in end-of-life vehicles. This has created a strong need for a rapid and reliable testing method.
Cryogenic Preparation of Sample Materials
Within the context of sample preparation, size reduction plays an important role as it has a substantial influence on the results of the subsequent analysis. If the particles are too coarse or non-homogeneous the results of the analysis may turn out to be incorrect, especially if there is only a very small amount of sample material which represents the total amount.
Sample preparation of electronic scrap with SM 2000 and ZM 200
RETSCH mills in the context of RoHS and WEEE
Reliable sample preparation in food technology
An efficient sample preparation procedure for rapid, reliable and reproducible analytical results is becoming increasingly important today. Ever more stringent requirements are being set both in research and production, e.g. for product monitoring and quality control.
Analysis of cadmium in plastics
In recent years, mass media have focused on the topics of the environment and environmental conservation. With the advancement in scientific technology, resource development has progressed.
Sample Preparation of Solid Materials for the XRF-analysis
X-Ray fluorescence is one of the most versatile methods to determine elements in a sample. The material is exposed to x-rays that cause each element to emit its own unique fluorescent x-ray. The subsequent analysis of the results is based on comparisons to standard samples with given chemical composition.
The Representative Sample Preparation of Waste
Now that a certain environmental awareness has developed in the population over the past few years, our efforts are geared not only to avoiding waste, but also to reducing the mountains of waste which still arise by means of raw material recovery and the reintroduction of secondary raw materials into the industrial cycle.
Los especial del pigmento
Debido a la ilimitada variedad de colores y texturas que ofrencen los recubrimientos en polvo; muchos de los nuevos recubrimientosde aplicación especifica se crean en el laboratorio en pequeñas cantidades que luego se le envían al cliente para su aplicación y aprobación.
Molienda ultrarrápida y ultrafina
El nuevo molino ultracentrífugo ZM 200 de RETSCH es un molino de rotor no sólo extremadamente rápido y cuidadoso con el material molido, sino también de uso universal gracias a su amplia gama de accesorios.
Preparación de muestras altamente heterogéneas para el control de calidad
El agotamiento de los recursos y el aumento del precio de los combustibles primarios tales como el petróleo, el gas o el carbón han obligado a la industria del cemento a buscar fuentes alternativas de energía. Otro factor contribuyente es, sin duda, el comercio de emisiones que hace todavía más rentable el cambio a fuentes de energía con un balance neutro de CO2, en su mayoría combustibles no fósiles. En los últimos años, se ha registrado un incremento en el uso de fuentes de energía alternativas, especialmente por aquellas industrias con una alta demanda energética. En consecuencia, viene ganando cada vez más importancia el empleo de combustibles secundarios o alternativos, que en su mayoría son extraídos de residuos urbanos e industriales – es decir, residuos urbanos que no han podido ser recuperados ni reciclados.
Probenvorbereitung von Böden
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.
Von der Probe zum Pressling – 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.
Zerkleinern von Proben in einem Düngemittellabor
Für die genaue und reproduzierbare Analyse von Düngernährstoff, Spurennährstoffen und Spurenmineralien ist das vorherige Zerkleinern der Probe unverzichtbar. Das Düngerlabor der Division of Regulatory Services der University of Kentucky verwendet zum Homogenisieren der Proben die Ultra-Zentrifugalmühle ZM 200 von Retsch.
Test Reports (132)
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Activated charcoal
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Activated charcoal, Formed pellets of 2 x 6 mm
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Algae, Dry
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Animal food
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Animal food, Feed pellets
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Animal food, Feed pellets / maize straw
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Bamboo, Shreddered
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Beet pulp, (Cellulose, lignine, pectine)
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Beet pulp, Pellets
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Biological Material, Animal collagen
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Biological Material, Beta-carotene
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Biological Material, Beta-chitin
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Biological Material, Chitosan
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Biological Material, Collagen
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Bones, 2 pieces
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Bones, Cortical human bones, dry and degreased
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Bones, Human cortical bones dry, degreased and sterilised
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Bottle pre-forms (PET)
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Bottle pre-forms (PET)
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Bottle pre-forms (PET)
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Bottle pre-forms (PET)
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Bottle pre-forms (PET)
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Brake covering, Raw material for brake coverings
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Coal, Lignite / brown coal
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Cocoa, Cocoa beans (dry, moist); 2 samples
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Coffee beans, Arabica, Robusta
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Coffee beans, Green coffee
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Coffee beans, Green coffee
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Coffee beans, Green coffee
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Coffee beans, Roasted coffee
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Cork
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Cork covers (for wine bottles)
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Electronic components, Circuit board
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Electronic components, Circuit board
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Electronic components, Electronic cards and electric cable
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Electronic components, Mobile Phone
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Electronic components, Printed circuit boards
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Fertilizer
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Fertilizer, Ammonium nitrate, potassium phosphate
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Fertilizer, Guano - granulate
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Fertilizer, Pellets, powder
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Fertilizer, Super phosphate
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Fruit, Maple fruit
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Fruit, Raspberry, dried
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Fruit, Strawberry, dried
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Minerals, Bentonite
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Minerals, Bentonite
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Minerals, Calcium oxide CaO
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Minerals, Limestone, quicklime
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Noodles, 5 samples: tubes, Penne, Tagliatelle, Farfalle, Spaghetti
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Nuts, Wash nuts, soap nutshell
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Oat pellets
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Paper, Wood cellulose paper
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Plant materials, Bracket fungi
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Plant materials, Grass, roots, cereals
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Plant materials, Leaves, stems, roots and fruits
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Plant materials, Roots, fruits
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Plant materials, Roots, pieces up to 40 mm
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Plastics
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Plastics
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Plastics
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Plastics, Blister pack
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Plastics, EPDM
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Plastics, Elastomer (thermoplastic plastic granulate)
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Plastics, Films of Ethylen-Vinylacetat (EVA), Polyvinylbutyrate (PVB)
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Plastics, HDPE (High Density Polyethylene)
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Plastics, PA (Polyamide with carbon fibre and teflon)
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Plastics, PAA (Polyacrylamide)
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Plastics, PEEK granules
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Plastics, PET (Polyethylenterephtalate crystallized)
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Plastics, PET (granulate and flakes)
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Plastics, PET, PP, ABS, polystyrole, polycarbonate (granules)
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Plastics, PLA Granulate (Polylactic Acid)
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Plastics, PP (Polypropylene), PBT (Polybutylphthalate)
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Plastics, PP-Pellets
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Plastics, PU (Polyurethane elastomer)
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Plastics, Polymer
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Polymers, Coating-Polymer
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Polymers, PBT, PA6,6
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Powder coating
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Powder coating
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Powder coating
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Powder coating, Based on epoxy resin
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Powder coating, Based on epoxy resin
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Powder coating, chips
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Powder coating, with titanium dioxide and PUR
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Refuse derived fuels (RDF), Dry plastic waste
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Refuse derived fuels (RDF), Municipal solid waste and packaging waste
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Refuse derived fuels (RDF), Plastic Foil, Paper, organic parts
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Refuse derived fuels (RDF), Plastic foils
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Refuse derived fuels (RDF), Secondary combustible
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Resin, Epoxy, resin chips
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Rice
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Rice, (13 - 14 % residual moisture)
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Rubber, Parts of foamed rubber (earplugs, headphone, etc.)
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Rubber, Rubber from tyres
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Rubber, Viton
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Seeds, Cassia seeds, splits and gum semi refined
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Seeds, Guarana seeds
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Seeds, Maize
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Seeds, Maize,Soya beans, sorgo
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Seeds, Maize, freeze dried corn
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Seeds, Soybeans, maize
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Seeds, Soybeans, maize
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Seeds, Soy beans, molasse pellets, rape seed
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Seeds, Soybeans meal
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Shells, Shrimp shells
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Silk, Cocoons and dried larvas
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Spices, Caraway, oregano, coriander, thyme, bear´s garlic
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Straw
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Straw, Wheat straw
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Sugar, Saccharose
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Super absorbent, Polymer
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Super absorbent, Polymer
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Sweets, Energetic bars, chewing gum, base gum, dates, green coffee, cacao residues
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Sweets, Gummy Bears, Fruit Slices, Life Savers, Caramel Creams
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Tea, Green tea
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Tire, Tire chips for derived fuels
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Tire, Used tire (rubber granulate)
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Tissue, Pig´s ears (dried)
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Tissue, Rat (freeze-dried) and faeces
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Tobacco
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Tobacco, Leaves; stems
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Toys, Barbie doll
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Toys, Locomotive (plastics)
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Toys, Plastic stove (without electronics)
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Toys, Racing car
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Vegetables, Collard, green, freeze dried
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Vegetables, Spinach, dried
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Waste, Plastic waste pellets
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Waste, Pulp; solid mixed fuel; pelleted refused derived fuels; fluff as refused derived fuels
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Waste, Punching and cutting waste of ductile materials
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