Air-segmented continuous-flow visible spectrophotometric determination of cephalosporins in drug formulations by alkaline degradation to hydrogen sulphide and formation of methylene blue and determination of sulphide-producing impurities including cephalosporins in penicillin samples

The Analyst ◽  
1983 ◽  
Vol 108 (1282) ◽  
pp. 53 ◽  
Author(s):  
Mohamed A. Abdalla ◽  
Arnold G. Fogg ◽  
John G. Baber ◽  
Christopher Burgess
Keyword(s):  
Methylene Blue ◽  
Spectrophotometric Determination ◽  
Hydrogen Sulphide ◽  
Continuous Flow ◽  
Alkaline Degradation ◽  
Drug Formulations

Spectrophotometric determination of malathion with methylene blue

The Analyst ◽  
1987 ◽  
Vol 112 (8) ◽  
pp. 1189 ◽  
Author(s):  
Kalluru Seshaiah ◽  
Pratapa Mowli
Keyword(s):  
Methylene Blue ◽  
Spectrophotometric Determination

Extraction—spectrophotometric determination of phosphate as the methylene blue molybdophosphate

1977 ◽  
Vol 91 (2) ◽  
pp. 386-387 ◽  
Author(s):  
Tsutomu Matsuo ◽  
Junichi Shida ◽  
Waichiro Kurihara
Keyword(s):  
Methylene Blue ◽  
Spectrophotometric Determination

Spectrophotometric determination of paracetamol in drug formulations with 2-iodylbenzoate

The Analyst ◽  
1984 ◽  
Vol 109 (6) ◽  
pp. 735 ◽  
Author(s):  
Krishna K. Verma ◽  
Anil K. Gulati ◽  
Sandhya Palod ◽  
Pramila Tyagi
Keyword(s):  
Spectrophotometric Determination ◽  
Drug Formulations
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