[Determination of trace manganese in food by flame atomic absorption spectrometry with microemulsion sampling injection].
The effects of four surfactants and microemulsion were studied in the detection on trace manganses in food by flame atomic absorption spectrometry. The results showed that the absorption increased when one of two of surfactants and microemulsion were used. The microemulsion are the most effective. The absorption increased by 58%. A method of determination on trace manganese by means of atomic absorption spectrometry sensitized with microemulsion was established. At the same time, we also made a recovery experiment for trace manganese in food, The relative standard deviation is 2.90%-5.62%, and recovery is 97.0%-98.2%.
Wang
Xin-ping
XP
Sciences School, Fushan University, Fushan 528231, China.
Wang
Chun-yan
CY
D004655:Emulsions; D005504:Food Analysis; D008345:Manganese / Q000032:analysis*; D012275:Oryza / Q000737:chemistry*; D013054:Spectrophotometry, Atomic / Q000379:methods*; D013662:Tea / Q000737:chemistry*
D004655:Emulsions; D013662:Tea; D008345:Manganese