scholarly journals FIRST DERIVATIVE SPECTROPHOTOMETRY FOR SIMULTANEOUS DETERMINATION OF IRON AND CALCIUM USING BROMOPYROGALLOL RED.

2017 ◽  
Vol 5 (8) ◽  
pp. 1686-1691
Author(s):  
AminK Qasim ◽  
◽  
LazginA Jamil. ◽  
1997 ◽  
Vol 126 (1-2) ◽  
pp. 153-157 ◽  
Author(s):  
Luis Fermín Capitán-Vallvey ◽  
Natalia Navas Iglesias ◽  
Ignacio de Orbe Payá ◽  
Ramiro Avidad Castaneda

The Analyst ◽  
1988 ◽  
Vol 113 (9) ◽  
pp. 1439-1442 ◽  
Author(s):  
José A. Murillo ◽  
José M. Lemus ◽  
Arsenio Muñoz de la Peña ◽  
Francisco Salinas

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