[Studies on determinaion of selenium in drink by GFAAS].
Pd(NO3)2-Triton X-100 was used as matrix modifier for determination of selenium in drink. In this way ashing temperature can be increased up to 1200 degrees C and absorbance can increase by 2.92 times. Interferences of Fe, P and other elements were reduced effectively by means of Zeemen effect background correction. Detection limit is 8.0ng/mL and linear range is from 10 to 120ng/ml, and r = 0.9931.
Ren
J
J
Analysis and Testing Center, Shandong Normal University, 250014 Jinan.
Wang
H
H
Zhang
X
X
Liu
S
S
D001628:Beverages / Q000032:analysis*; D005504:Food Analysis / Q000379:methods*; D006108:Graphite / Q000737:chemistry*; D017830:Octoxynol / Q000737:chemistry; D010165:Palladium / Q000737:chemistry; D012643:Selenium / Q000032:analysis*; D013054:Spectrophotometry, Atomic; D013696:Temperature
C090639:palladium nitrate; D010165:Palladium; D006108:Graphite; D017830:Octoxynol; D012643:Selenium