[Determination of trace elements in 13 traditional Chinese medicines in medicated diet for diabetes mellitus by ICP-MS].
OBJECTIVE
To investigate six trace elements including Cr, Zn, Mn, Se, Cu and V of 13 traditional Chinese medicines (TCM) commonly used in diet therapy of diabetes mellitus.


METHODS
The samples were prepared through digesting in a microwave oven and determined with Inductively Coupled Plasma Mass Spectrometry (ICP-MS).


RESULTS
The correlative coefficients of the calibration curves were above 0.999. Standard addition recovery was 88.7% - 110.0% and RSD < or = 7.0%. Under the given analytical conditions, the results obtained showed that the contents of the six trace elements varied in these TCM samples, for element Cr, ranging between 0-11.82 microg x g(-1), Mn in 4.36-564.3 microg x g(-1), Cu in 0.55-13.34 microg x g(-1), Zn in 3.19-86.23 microg x g(-1) Se in 0-0.39 microg x g(-1) and V in 0.05-12.04 microg x g(-1), respectively.


CONCLUSIONS
The possible relationship between the content of the six trace elements and 13 TCM samples for dietetic therapy of diabetes mellitus was also discussed.
Shao
You-Yan
YY
Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, School of Life Sciences, Xiamen University, Xiamen 361005, China.
Cai
Bi-Shuang
BS
Lin
Ji-Yun
JY
Xu
Jin-Sen
JS
D002857:Chromium / Q000032:analysis; D003300:Copper / Q000032:analysis; D003927:Diet, Diabetic; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D008345:Manganese / Q000032:analysis; D013058:Mass Spectrometry / Q000379:methods*; D008516:Medicine, Chinese Traditional; D010946:Plants, Medicinal / Q000737:chemistry; D015203:Reproducibility of Results; D012643:Selenium / Q000032:analysis; D013054:Spectrophotometry, Atomic; D014131:Trace Elements / Q000032:analysis*; D014639:Vanadium / Q000032:analysis; D015032:Zinc / Q000032:analysis
D004365:Drugs, Chinese Herbal; D014131:Trace Elements; D014639:Vanadium; D002857:Chromium; D008345:Manganese; D003300:Copper; D012643:Selenium; D015032:Zinc