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BÜCHI Labortechnik is a globally operating privately held company headquartered in Switzerland. Founded 1939 as a glass blowing workshop BÜCHI is offering laboratory equipment, analytical systems and NIR technology. Since 1978 the German BÜCHI Labortechnik GmbH situated in Essen serves its customers more
Sigma-Genosys, a division of Sigma-Aldrich announced that it has expanded its portfolio of technologies to support its rapidly growing custom peptide business. Central to this expansion is the introduction of mass-based purification systems. LC/MS purification has supplanted conventional, less-spec more
Gel permeation chromatography (GPC) or also named size exclusion chromatography (SEC) is the most often used method for determining the molecular weight of natural and synthetic macromolecules. One specific strength of this method lies in the fact that by the separation process the whole molecular weight distribution is obtained. The molecular weight distribution contains much larger information for the characterization of polymer samples compared to a single value. more
To establish a standard of quality control and to identify reliable Achyranthis Radix, three phytoecdysones including ecdysterone (1), 25R-inokosterone (2) and 25S-inokosterone (3) were determined by quantitative HPLC/UV analysis. Three phytoecdysones were separated with an YMC J’sphere ODS C18 colu more
ABSTRACT A simple, sensitive and reproducible isocratic reversed‐phase (C18) high‐performance liquid chromatography (HPLC) method was developed to determine 7‐O‐succinyl macrolactin A (SMA) in rat plasma and urine samples using UV detector set at 230 nm. Lamotrigine was used as internal standards more
ABSTRACT A novel, simple, specific, sensitive and reproducible high‐performance liquid chromatography (HPLC) assay method has been developed and validated for the estimation of abiraterone (ART) in rat plasma. The analytical procedure involves extraction of ART and diclofenac (internal standard, more
Dissolution Tester: DT-810 Spectroscopy Complete range of spectroscopy intrumentation with powerful Spectra Manager cross platform software control capability. Instrumentation includes: UV/Vis/NIR , Dissolution Testers , Fluorescence, FT-IR & FT-Raman, Dispersive Raman , Microscopy , Nanotechnology more
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Plane Gratings Standard products Information about our plane Gratings... When ordering a grating, please use the following example format: P 1200 W x H x Thk 700-900 nm (TM+TE)/2 (-1) constant deviation angle 30° 1. P for Plano and L for Littrow gratings (optional information) 2. 1200 is the groove more
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