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Ding Y, Shen X, Wu X, et al. [Determination of distearyl dimethyl ammonium chloride in textiles by reversed-phase and normal-phase liquid chromatography-electrospray ionization tandem mass spectrometry]. Se Pu. 2011;29(6):507-12doi: 10.3724/sp.j.1123.2011.00507.
Ding, Y., Shen, X., Wu, X., Wu, L., & Cao, X. (2011). [Determination of distearyl dimethyl ammonium chloride in textiles by reversed-phase and normal-phase liquid chromatography-electrospray ionization tandem mass spectrometry]. Se pu = Chinese journal of chromatography, 29(6), 507-12. https://doi.org/10.3724/sp.j.1123.2011.00507
Ding, Youchao, et al. "[Determination of distearyl dimethyl ammonium chloride in textiles by reversed-phase and normal-phase liquid chromatography-electrospray ionization tandem mass spectrometry]." Se pu = Chinese journal of chromatography vol. 29,6 (2011): 507-12. doi: https://doi.org/10.3724/sp.j.1123.2011.00507
Ding Y, Shen X, Wu X, Wu L, Cao X. [Determination of distearyl dimethyl ammonium chloride in textiles by reversed-phase and normal-phase liquid chromatography-electrospray ionization tandem mass spectrometry]. Se Pu. 2011 Jun;29(6):507-12. doi: 10.3724/sp.j.1123.2011.00507. Chinese. PMID: 22032161.
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Se Pu. 2011 Jun;29(6):507-12. doi: 10.3724/sp.j.1123.2011.00507.

[Determination of distearyl dimethyl ammonium chloride in textiles by reversed-phase and normal-phase liquid chromatography-electrospray ionization tandem mass spectrometry].

Se pu = Chinese journal of chromatography

[Article in Chinese]
Youchao Ding, Xiaoping Shen, Xiaoqiong Wu, Lina Wu, Xizhong Cao

Affiliations

  1. Inspection Center of Industry Products, Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210001, China.

PMID: 22032161 DOI: 10.3724/sp.j.1123.2011.00507

Abstract

A method of reversed-phase (RP)/normal-phase (NP)-liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) was developed for the determination of distearyl dimethyl ammonium chloride (DSDMAC) in textiles. The DSDMAC in textile was extracted by ultrasound-assisted extraction using methanol as extraction solvent under the conditions of 70 degrees C and 420 W within 30 min. The three quaternary ammonium compounds of DSDMAC were detected by LC-MS/MS in the selective reaction monitoring (SRM) mode. The limits of detection (LODs) (S/N = 3) of DSDMAC detected by RPLC-MS/MS and NPLC-MS/MS based on an amino-column were 0.1 mg/kg and 0.01 mg/kg, respectively. The recoveries of DSDMAC spiked in the eight different types of blank fabrics ranged from 85.5% to 103% with the relative standard deviations (RSDs) of 4.18% - 12.8% (n = 5) by RPLC-MS/MS method. Five laboratories were invited to take part in the validation of the method, and the RSDs of inter-lab were 7.3% - 9.4% on two reference samples. The method is fast, accurate and reproducible, and can meet the demands of the determination of DSDMAC in textiles.

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