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A simple and efficient procedure for synthesis of optically active 1,3,4-oxadiazole derivatives containing L-amino acid moieties
N-phetaloyl-L-amino acid 1,3,4-oxadiazole diacylhydrazide pyridoyl hydrazide
2010/10/19
Some new unsymmetrical and optically active 2,5-disubstituted 1,3,4-oxadiazoles 5a-j were efficiently synthesized by cyclization reaction of diacylhydrazides 4a-j. The synthesis of the title compounds...
Application of a Three-Stage Sequential Extraction Procedure for the Determination of Extractable Metal Contents in Highway Soils
Sequential extraction heavy metals highway soils enrichment flame atomic absorption spectrometry
2010/4/21
A sequential extraction procedure, a three-step protocol proposed by the Standards, Measurements and Testing programme (SM & T--formerly BCR) of the European Union, was applied to soil samples for the...
A Procedure for the Improvement in the Determination of a TXRF Spectrometer Sensitivity Curve
TXRF Spectrometer Sensitivity Curve
2010/9/17
A simple procedure is proposed to determine the total reflection X-ray fluorescence (TXRF) spectrometer sensitivity curve; this procedure provides better accuracy and exactitude than the standard est...
Pressurized Liquid Extraction and Cleanup Procedure for the Determination of Pyrethroids in Soils Using Gas Chromatography/Tandem Mass Spectrometry
Pressurized Liquid Extraction Cleanup Procedure Pyrethroids Soils Using Gas Chromatography/Tandem Mass Spectrometry
2010/9/20
An analytical method for the simultaneous determination of 12 pyrethroids in soil samples was developed using gas chromatography tandem quadrupole mass spectrometry. Pyrethroids were extracted by pre...
Preparation of Palladium Composite Membranes on Pore Structure Modified and Non-Modified Supports by Electroless Plating Procedure
Electroless plating palladium composite membrane support
2010/4/15
The effects of pore structure of the support on the plating morphology, thickness, and composition were investigated in an electroless plating procedure. Some of the plating studies were carried out d...
期刊信息
篇名
A modified procedure for fast purification of T7 RNA polymerase
语种
英文
撰写或编译
撰写
作者
Yong Li,En-duo Wang(通讯作者),Ying-lai Wang
第一作者单位
中科院上海生化所分子生物学国家重点实验室
刊物名称
Protein Expression and Purification,
...