Sigma-Aldrich Chemie B.V.

Use of nitrate-nitrogen as a sole dietary nitrogen source to inhibit ruminal methanogenesis and to improve microbial nitrogen synthesis in vitro.(Report)
Asian - Australasian Journal of Animal Sciences; 4/1/2009; 6787 words; ...urea (U4128, Sigma-Aldrich Chemical Co...S5506, Sigma-Aldrich) as sole N sources...S4251, Sigma-Aldrich) and Avicel (GH-9471, Fluka, Chemie GmbH) to balance...buffer solution B, 200 ml macro...0.1% w/v) and 40 ml reductant...

Preparation of rat synovial membrane for studies of cytokine secretion
Folia Histochemica et Cytobiologica; 1/1/2007; 1590 words; ...and fibroblast-like B cells so called synoviocytes...RPMI and antibiotics (Sigma-Aldrich Chemie, D82041 Diesenhofen...buffer (CHAPS 1% w/v, NaCl 150 mM, TRIS 50...from E. coli 055: B5 (Sigma-Aldrich) [7] and incubated...

Liquid chromatographic determination of sennosides in Cassia angustifolia leaves.(DIETARY SUPPLEMENTS)(Report)
Journal of AOAC International; 7/1/2006; 3332 words; ...sennosides A and B under crop improvement...Germany). (b) Methanol...LC grade (Loba Chemie, Mumbai, India...Sennosides A and B were purchased from M/S Fluka (Sigma-Aldrich, St. Louis...water (70 + 30, v/v; 4 mL each...

Spreeta-based biosensor immunoassays to detect fraudulent adulteration in milk and milk powder.(SPECIAL GUEST EDITOR SECTION)(Report)
Journal of AOAC International; 5/1/2006; 4674 words; ...cow's milk was 0.17% (v/v) and bovine rennet whey...Amsterdam, The Netherlands). (b) Protease.--From Aspergillus...griseus, Type XIV (P-5147; Sigma-Aldrich Chemie, Zwijndrecht, The Netherlands...Bromoacetic acid.--99% (Sigma-

CATHODIC STRIPPING VOLTAMMETRY OF 2-THIOURACILS
Collection of Czechoslovak Chemical Communications; 2/1/2005; 2800 words; ...Electrochemical System (GPES) software (Eco Chemie B.V., The Netherlands). The working electrode...were of pure reagent grade, MTU and PTU from Aldrich, TU from Fluka and BTU from Sigma. Other substances were of analytical grade...