[Determination of fifteen metal elements in Cynomorium songaricum by flame atomic absorption spectrophotometry (FAAS)].
A FAAS method was established for the determination of Na, K, Mg, Ca, Cu, Zn, Fe, Mn, Ni, Co, Pb, Cr, Cd, Ag and Au in Cynomorium songaricum after digestion with HNO3-HClO4 (phi 4:1) at 90-95 degrees C and at normal pressure. In this paper, the parameters in FAAS were studied. The analytical results of Na, K, Mg, Ca, Fe, Zn, Cu, Mn, Pb, Ni and Ag were 13,572.0, 14,260.0, 358.3, 168.3, 238.5, 19.4, 5.9, 3.4, 2.6, 1.3 and 0.4 microg x g(-1) respectively and Co, Cr, Cd and Au were not found in the samples. The results showed that the recovery of standard addition was 97.8%-104.5%, and the relative standard deviation (n = 9) was 0.2%-5.0%. The method is fast, simple and convenient. The results were satisfactory.
Xue
Guo-qing
GQ
Department of Chemistry, Hexi University, Zhangye 734000, China.
Liu
Qing
Q
Ren
Xue-feng
XF
Han
Yu-qi
YQ
D000327:Adsorption; D002104:Cadmium / Q000032:analysis; D002118:Calcium / Q000032:analysis; D002857:Chromium / Q000032:analysis; D003035:Cobalt / Q000032:analysis; D003300:Copper / Q000032:analysis; D031482:Cynomorium / Q000737:chemistry*; D004785:Environmental Pollutants / Q000032:analysis; D006046:Gold / Q000032:analysis; D007501:Iron / Q000032:analysis; D007854:Lead / Q000032:analysis; D008274:Magnesium / Q000032:analysis; D008345:Manganese / Q000032:analysis; D008670:Metals / Q000032:analysis*; D009532:Nickel / Q000032:analysis; D011188:Potassium / Q000032:analysis; D012834:Silver / Q000032:analysis; D012964:Sodium / Q000032:analysis; D013054:Spectrophotometry, Atomic / Q000379:methods; D013324:Strontium / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis; D015032:Zinc / Q000032:analysis
D004785:Environmental Pollutants; D008670:Metals; D014874:Water Pollutants, Chemical; D002104:Cadmium; D002857:Chromium; D007854:Lead; D003035:Cobalt; D012834:Silver; D008345:Manganese; D006046:Gold; D003300:Copper; D009532:Nickel; D012964:Sodium; D007501:Iron; D008274:Magnesium; D015032:Zinc; D011188:Potassium; D002118:Calcium; D013324:Strontium