A novel method for fast enrichment and monitoring of hexavalent and trivalent chromium at the ppt level with modified silica MCM-41 and its determination by inductively coupled plasma optical emission spectrometry
期刊论文
摘要:
Chromium(III) at the ng L-1 level was extracted using partially silylated MCM-41 modified by a tetra...
VALIDATION OF A METHOD TO DETECT COCAINE AND BENZOYLECGONINE IN HUMAN WHOLE BLOOD BY GAS CHROMATOGRAPHY-MASS SPECTROMETRY AND APPLICATION IN BODY PACKERS AND STUFFERS CASES IN THE NORTH OF CHILE
期刊论文
摘要:
The present paper describes a method for the simultaneous determination of cocaine and benzoylecgoni...
Optimization of Experimental Parameters in Analysis of Pharmaceutical Pellets by Near Infrared-Chemical Imaging (NIR-CI) and Multivariate Curve Resolution with Alternating Least Squares (MCR-ALS)
期刊论文
摘要:
The quality control of pellets homogeneity cannot be assessed by conventional techniques and near in...