Medicina / Farmaceutica

Database applicativo

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Flyer applicativi (2)

Pharma
Acrylamide Analysis in Food

Rivista dell'azienda "il campione" (10)

No. 37
NEW DIMENSIONS in sample preparation and particle analysis

No. 36
L'arte della macinazione - Tecnologie di macinazione contemporanee

No. 34
NUOVI PRODOTTI '09

No. 31
GRAND PRIX Stagione 2008 & RETSCH novità

No. 29
Nuova gamma di prodotti 2007

No. 28
Think big but grind fine!

No. 27
Sample Preparation in Biology and Medical Science

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. 37
UNA NUEVA DIMENSIÓN en la preparación de muestras y análisis granulométrico

Reports applicativi (15)

Setacciatura di polveri agglomerate con il setacciatore a getto d’aria AS 200 jeting machine AS 200 jet
Il setacciatore a getto d’aria viene utilizzato principalmente per la setacciatura di materiali secchi con particelle di dimensioni inferiori ai 40 micron. Può comunque essere un’alternativa rapida alla classica setacciatura fino a 250 micron.

Nano particelle con effetti enormi
Gli scienziati hanno studiato le nano particelle (particelle estremamente piccole con meno di 100 nanometri di diametro) per molti anni. A proposito delle nano particelle, sono state sviluppate nuove ed innovative proprietà, es. semiconduttive o superficiali, cosi come l’effetto Lotus che ha aperto possibilità fino ad ora inaspettate.
Esistono diversi metodi per produrre nano particelle. La tecnica “bottom up” coinvolge la sintesi delle particelle da atomi e molecole. Con il metodo “top down”, le particelle vengono ridotte a dimensioni nanometriche tramite la macinazione. Lo strumento adatto per questa applicazione è il mulino planetario a sfere, come i RETSCH PM 100, PM 200, PM 400 che forniscono il necessario input di energia per la macinazione fino a dimensioni nanometriche.

Utilizzo del Cryomill per campioni con componenti volatili
Per la riduzione di dimensioni di molti materiali è consigliabile utilizzare un mulino criogenico invece di un mulino che opera a temperature ambiente. Il campione viene infragilito con l'azoto liquido che migliora il suo comportamento di rottura quando viene sottoposto a impatto, pressione e attrito. Inoltre, in questo modo vengono conservati i componenti volatili del campione. Il mulino Cryomill non solo è il mulino criogenico più sicuro e moderno sul mercato ma fornisce anche eccellenti risultati di macinazione.

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.

Representative results require adequate sample preparation
The following situation is typical for many production plants: After a routine quality check, the production process is stopped or an already produced batch is suspended, because the analysis results were not within the relevant critical values. But does the tested product really deviate from the specifications? The quality control managers are convinced of this because modern analysis instruments provide results with very low tolerances. The sample in question was tested several times and the result was confirmed. The question is why the product does not match the specifications although the production parameters have not been changed in any way.
The possibility that the tested product is indeed deficient cannot be excluded. However, it is often not the product itself which causes irregular analysis results but a lack of understanding of the steps which come before the analysis.

Powerful Cutting Mill
The SM 300 excels especially in the tough jobs where other cutting mills fail. It has a freely selectable speed range from 700 to 3,000 rpm with high torque. The mill is convenient to operate and easy to clean. Reliable and extremely efficient sample preparation in the laboratory is now guaranteed with the SM 300.

Air Jet Sieving of Bulk Materials
Particle size analysis and particle size distribution are important criteria for the quality control of bulk materials. In a running production process, the results of a quality check must be available quickly to allow for immediate adjustment of the production parameters. Depending on the expected particle size and sample volume, different sieving methods and sieving machines are suitable for analysis. The method used for particle size analysis is primarily determined by the fineness of the material to be sieved. For dry sieving of samples with particle sizes below 40 microns, air jet sieving is the method of choice.

Efficient Grinding at –196 °C
RETSCH’s New CryoMill for Safe and Reproducible Grinding with Liquid Nitrogen

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.

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.

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.

Höchstleistung im Doppelpack
Mit der PM 100 und der PM 200 präsentiert Retsch eine neue Generation von Planeten-Kugelmühlen mit einer bzw. zwei Mahlstellen, die in diesem Produktsegment neue Leistungsstandards setzen.

Schnell und schonend zerkleinern
In zahlreichen Labors werden täglich viele unterschiedliche Probenmaterialien aufbereitet. Für die Zerkleinerung von Feststoffproben auf Analysenfeinheit wird eine Mühle benötigt, die nicht nur vielseitig einsetzbar und leicht zu reinigen ist, sondern die auch eine reproduzierbare Probenvorbereitung – und damit zuverlässige Analysenergebnisse - garantiert.
Mit der Ultra-Zentrifugalmühle ZM 200 bietet RETSCH eine Rotormühle an, die nicht nur sehr schnell, sondern auch äußerst materialschonend zerkleinert und, dank einer umfangreichen Zubehörpalette, universell einsetzbar ist. Mit ihrem kraftvollen Powerdrive-Antrieb vermahlt die ZM 200 weiche bis mittelharte und faserige Materialien extrem schnell auf Endfeinheiten bis unter 100 µm und steigert so den Probendurchsatz im Labor.

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.

Soluções para controle de qualidade farmacêutica

Comunicati stampa (1)

Versatile Ultra Centrifugal Mill with New Cyclone
RETSCH’s powerful and versatile ZM 200 offers the ultimate in performance and operating comfort. It is used for the rapid size reduction of soft to medium-hard and fibrous materials down to 40 microns. Because of the efficient size reduction technique and the comprehensive range of accessories the ZM 200 ensures the gentle preparation of analytical samples in a very short time.
For applications which require an optimum air throughput (e. g. heat sensitive materials) or if larger sample volumes need to be processed, the use of a cyclone is recommended. RETSCH offers a re-designed cyclone with improved functionalities for collector volumes from 250 ml to 5 liters which adds to the ZM 200’s great flexibility.
Thanks to the wide range of accessories with different rotors, ring sieves and collectors, the ZM 200 can be easily adapted to suit a wide range of applications such as, for example, heavy-metal-free grinding, size reduction of abrasive materials or processing small volumes up to 20 ml.