Cloud point extraction and spectrophotometric determination of codeine in pharmaceutical and biological samples

2010 ◽  
Vol 7 (3) ◽  
pp. 678-684 ◽  
Author(s):  
M. H. Mashhadizadeh ◽  
L. Jafari
Keyword(s):  
Cloud Point ◽  
Spectrophotometric Determination ◽  
Biological Samples ◽  
Cloud Point Extraction

Optimization of an analytical method for the spectrophotometric determination of copper in tea and water samples after ultrasonic assisted cloud point extraction using a benzothiazole fluorescein derivative complexing agent

RSC Advances ◽  
2015 ◽  
Vol 5 (80) ◽  
pp. 65321-65327 ◽  
Author(s):  
Chunlei Fan ◽  
Shengxu Luo ◽  
Rong Liu
Keyword(s):  
Cloud Point ◽  
Spectrophotometric Determination ◽  
Water Samples ◽  
Analytical Method ◽  
Cloud Point Extraction ◽  
Complexing Agent ◽  
Ultrasonic Assisted ◽  
Determination Of Copper

BTF is exists with spirolactone species with adding Cu2+, which leads to the absorbance intensity is decreased gradually and the decrease of the absorbance value is linear for Cu2+.

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