H-point Standard Addition Method for Determination of Cadmium and Mercury
Poonam P. Kaur 1  
,   Usha Gupta 1
 
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Department of Chemistry, Punjabi University, Patiala - 147002, Punjab, India
CORRESPONDING AUTHOR
Poonam P. Kaur   

Department of Chemistry, Punjabi University, Patiala - 147002, Punjab, India
Publication date: 2017-10-24
 
Eurasian J Anal Chem 2013;8(1):28–37
 
KEYWORDS
ABSTRACT
H-point standard addition method (HPSAM) has been applied for simultaneous determination of Cd(II) and Hg(II) using 1-(2-pyridylazo)-2-naphthol (PAN) as a chromogenic reagent in aqueous Triton X-100 micellar media at pH 10.0. Cd(II) and Hg(II) can be determined simultaneously in the concentration range 0.112-1.405 μg mL-1 and 0.201-2.507 μg mL-1 respectively. The proposed method has successfully been applied for simultaneous determination of Cd(II) and Hg(II) in synthetic samples, spiked water samples, tobacco, tomato, spinach and powdered milk.
 
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