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Molino mezclador MM 400

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Informes de pruebas de laboratorio (43)

Informes técnicos (17)

Preparación de muestras para el análisis por fluorescencia de rayos X
De la muestra al comprimido
Análisis de sustancias nocivas en muestras biológicas
La molienda criogénica facilita la preparación de muestras de origen animal
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.
Soluções para controle de qualidade farmacêutica
What Hair Reveals
The detection of illegal drugs and pharmaceuticals plays a role in various fields, for example in forensic science, road traffic accidents, in competitive sports or at the workplace. Chemical substances can be detected in blood, saliva, urine and in hair. Hair has the great advantage of storing the substances for a long period, which means that detection is still possible several months after consumption of the drug. In addition to the detection of drugs, hair samples are also used for DNA analysis as well as for the analysis of heavy metals and minerals.
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 for a fairly long period, depending on the hair length. In addition to the tracing of drug abuse, hair samples are also used for DNA analysis.
Representative sample preparation for XRF analysis
Preparing homogeneous samples by milling
Efficient Grinding at –196 °C
RETSCH’s New CryoMill for Safe and Reproducible Grinding with Liquid Nitrogen
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.
Sick with Dolls
Traces of Heavy Metals in Toys
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.
Making Whole Cell Extract of Saccharomyces cerevisiae
Preparation at the Courtesy of the Staley Lab at the University of Chicago
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 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.
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.
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.

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Revista "la muestra" (13)

No. 36
El arte de la trituración - Tecnologías contemporáneas de trituración
No. 33
PREPARACIÓN DE MUESTRAS EN LA VIDA REAL & NUEVOS PRODUCTOS
No. 32
PREPARACIÓN DE MUESTRAS para el análisis instrumental
No. 31
GRAND PRIX Temporada 2008 & RETSCH novedades
No. 30
Molinos y medidores de partículas para el ANÁLISIS MEDIOAMBIENTA
No. 29
NOVEDADES La generación de productos del 2007
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

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