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Ультрацентробежная мельница ZM 200

"the sample"

No. 33
SAMPLE PREPARATION IN PRACTICE & NEW RETSCH INSTRUMENTS

No. 32
SAMPLE PREPARATION for Instrumental Analysis

No. 31
Grand Prix Season 2008 & New RETSCH Instruments

No. 30
Mills and Particle Analyzers for Environmental Analysis

No. 28
Think big but grind fine!

No. 27
Sample Preparation in Biology and Medical Science

No. 26
CAMSIZER - Optical Particle Size and Shape Analysis

Проба - специальное издание
представляет основную продукцию

No. 25
Retsch presents the new Ultra-Centrifugal Mill ZM 200

No. 24
Anniversary issue of the RETSCH customer magazine 10 years "the sample"

No. 23
New Sieve Shakers AS 300 and AS 400 / Biology and Medicines

No. 21
Sample preparation for instrumental analysis

No. 20
Pharmaceutical Industry And Medicine

No. 17
Environmental Technology

No. 15
Preparation and testing of glass an ceramics

No. 14
Preparation and analysis of foodstuffs

No. 12
Particle analysis by digital image processing

No. 09
From jelly babies to car tyres...
the new Ultra-Centrifugal Mill ZM 100

No. 04
Focus: Sieving

No. 01
RETSCH: Worldwide on the spot

Отчёты о применении

Toxic analyses of biological samples
Cryogenic grinding facilitates the preparation of animal samples

Detection of Mycotoxins in Nuts
Preliminary and fine size reduction

Fat Analysis in Food and Feed
Size reduction of samples with a high fat content

Traces of Heavy Metals in Toys
From Size Reduction to Analysis

Sick with Dolls
Traces of Heavy Metals in Toys

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.

Fettbestimmung in Lebens- und Futtermitteln
Methoden und Vorgehen

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.

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.