Background-correction methods for the determination of caffeine in beverages, coffee and tea by using second-derivative ultraviolet spectrophotometry

The Analyst ◽  
1992 ◽  
Vol 117 (4) ◽  
pp. 777 ◽  
Author(s):  
Oi-Wah Lau ◽  
Shiu-Fai Luk ◽  
Oi-Ming Cheng ◽  
Teresa P. Y. Chiu
Keyword(s):  
Background Correction ◽  
Second Derivative ◽  
Ultraviolet Spectrophotometry

Determination of alkylnaphthalenes in petroleum fractions by second-derivative ultraviolet spectrophotometry

The Analyst ◽  
1986 ◽  
Vol 111 (1) ◽  
pp. 101 ◽  
Author(s):  
Lalji Dixit ◽  
Siya Ram ◽  
R. B. Gupta ◽  
H. C. Chandola ◽  
Pradeep Kumar
Keyword(s):  
Second Derivative ◽  
Ultraviolet Spectrophotometry ◽  
Petroleum Fractions

Determination of cephradine and l-arginine in injections by second derivative ultraviolet spectrophotometry

1992 ◽  
Vol 10 (7) ◽  
pp. 525-528 ◽  
Author(s):  
Alberto Parra ◽  
M.Dolores Gómez ◽  
Vincente Ródenas ◽  
Javier Garcia-Villanova ◽  
Maria Luisa López
Keyword(s):  
Second Derivative ◽  
Ultraviolet Spectrophotometry
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