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author:

Chen, YiQuan (Chen, YiQuan.) [1] | Chen, JinFa (Chen, JinFa.) [2] | Xi, Zhiming (Xi, Zhiming.) [3] | Yang, Guidi (Yang, Guidi.) [4] | Wu, Zujian (Wu, Zujian.) [5] | Li, JianRong (Li, JianRong.) [6] | Fu, FengFu (Fu, FengFu.) [7] (Scholars:付凤富)

Indexed by:

CPCI-S Scopus SCIE

Abstract:

We herein reported a method for the simultaneous detection of trace Cr(VI), Cr(III), and chromium(III) picolinate (CrPic) in foods using CE-ICP-MS together with ultrasonic-assisted extraction. The Cr(III) (Cr3+) was chelated with trans-1,2-diaminocyclohexane-N,N,N ',N '-tetraacetic acid (DCTA) to form a single charged Cr-DCTA(-) complex. Then, Cr(VI) (CrO42-), Cr-DCTA(-), and CrPic were separated by CE within 8 min under a separation voltage of -13 KV followed by their monitoring with ICP mass spectrometer (ICP-MS). The proposed method is simple, effective, and sensitive. It has an instrument detection limit of 0.10, 0.18, and 0.20 ngCr/mL for Cr(VI), Cr(III), and CrPic, respectively. With the help of the methods, we have successfully determined Cr(VI), Cr(III), and CrPic in nutritional supplement (CrPic yeast tablet) with an RSD (n = 5) <6% and a recovery of 93-103%. The experimental results showed that CrPic was the main speciation of chromium in the nutritional supplement, with a concentration of 1514.6 g Cr/g.

Keyword:

Capillary electrophoresis Chromium Chromium picolinate ICP-MS Speciation analysis

Community:

  • [ 1 ] [Chen, YiQuan]Fuzhou Univ, Key Lab Anal & Detect Food Safety, Fujian Prov Key Lab Anal & Detect Food Safety, Dept Chem,Minist Educ, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Chen, JinFa]Fuzhou Univ, Key Lab Anal & Detect Food Safety, Fujian Prov Key Lab Anal & Detect Food Safety, Dept Chem,Minist Educ, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Xi, Zhiming]Fuzhou Univ, Key Lab Anal & Detect Food Safety, Fujian Prov Key Lab Anal & Detect Food Safety, Dept Chem,Minist Educ, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Fu, FengFu]Fuzhou Univ, Key Lab Anal & Detect Food Safety, Fujian Prov Key Lab Anal & Detect Food Safety, Dept Chem,Minist Educ, Fuzhou 350108, Fujian, Peoples R China
  • [ 5 ] [Yang, Guidi]Fujian Agr & Forest Univ, Dept Plant Protect, Fuzhou, Fujian, Peoples R China
  • [ 6 ] [Wu, Zujian]Fujian Agr & Forest Univ, Dept Plant Protect, Fuzhou, Fujian, Peoples R China
  • [ 7 ] [Li, JianRong]Bohai Univ, Food Safety Key Lab Liaoning Prov, Jinzhou, Liaoning, Peoples R China

Reprint 's Address:

  • 付凤富

    [Fu, FengFu]Fuzhou Univ, Dept Chem, Fujian Prov Key Lab Anal & Detect Food Safety, Fuzhou 350108, Fujian, Peoples R China

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Source :

ELECTROPHORESIS

ISSN: 0173-0835

Year: 2015

Issue: 9-10

Volume: 36

Page: 1208-1215

2 . 4 8 2

JCR@2015

3 . 0 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:265

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 20

SCOPUS Cited Count: 26

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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