No. 27 Sample Preparation in Biology and Medical Science
No. 26 CAMSIZER - Optical Particle Size and Shape Analysis
No. 25 Retsch presents the new Ultra-Centrifugal Mill ZM 200
No. 23 New Sieve Shakers AS 300 and AS 400 / Biology and Medicines
No. 22 Sample preparation for chemical and synthetics industries / Mixer Mill MM 301
Nr. 06 Zerkleinerung: "Die Rolling Stones im Labor"
Nr. 13 Aufbereitung und Untersuchung von Baustoffen
Отчёты о применении
Tracking Down Fake Cashmere Cashmere wool is the best known precious wool. It is won from the cashmere goat which originates from the high mountain region of the same name. Due to its properties such as softness and warmth, cashmere wool gains more and more popularity in the manufacture of clothing. Genuine cashmere is won solely from the goat’s downy hair and must possess a certain hair structure with an exactly defined length and thickness.
Green Chemistry in the Lab Mechanochemistry is a very effective method to carry out syntheses without solvents and by-products. The technical literature describes a great number of reactions where a conversion of 100% is achieved. A precondition for the establishment of mechanochemistry in the industrial sector is the availability of suitable laboratory mills. A decisive factor is that – similar to conventional preparative chemistry – ambient parameters such as pressure and temperature can be documented and monitored. The Planetary Ball Mills and Mixer Mills from Retsch fulfill these requirements.
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.
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.
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 inhomogeneous 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.
Cryogenic disruption of yeast cells The MM 301 can be used for cell disruption applications. In this case, yeast cells were embrittled with liquid nitrogen.