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Rapid screening and identification of multi-class substances of very high concern in textiles using liquid chromatography-hybrid linear ion trap orbitrap mass spectrometry.

Rapid screening and identification of multi-class substances of very high concern in textiles using liquid chromatography-hybrid linear ion trap orbitrap mass spectrometry.

Journal of chromatography. A (2015-02-24)

Li Zhang, Xin Luo, Zengyuan Niu, Xiwen Ye, Zhixu Tang, Peng Yao

ABSTRACT

A new analytical method was established and validated for the analysis of 19 substances of very high concern (SVHCs) in textiles, including phthalic acid esters (PAEs), organotins (OTs), perfluorochemicals (PFCs) and flame retardants (FRs). After ultrasonic extraction in methanol, the textile samples were analyzed by high performance liquid chromatography-hybrid linear ion trap Orbitrap high resolution mass spectrometry (HPLC-LTQ/Orbitrap). The values of LOQ were in the range of 2-200mg/kg. Recoveries at two levels (at the LOQ and at half the limit of regulation) ranged from 68% to 120%, and the repeatability was lower than 13%. This method was successfully applied to the screening of SVHCs in commercial textile samples and is useful for the fast screening of various SVHCs.

MATERIALS

Product Number

Brand

Product Description

Sigma-Aldrich

Methanol, SAJ special grade

Sigma-Aldrich

Methanol, suitable for HPLC

Sigma-Aldrich

Ammonium acetate, BioXtra, ≥98%

Sigma-Aldrich

Phthalic acid, SAJ special grade, ≥99.0%

Sigma-Aldrich

Methanol, SAJ first grade, ≥99.5%

Sigma-Aldrich

Methanol, JIS 300, ≥99.8%, suitable for residue analysis

Sigma-Aldrich

Methanol, JIS special grade, ≥99.8%

Sigma-Aldrich

Ammonium acetate solution, 50 % (w/v)

Sigma-Aldrich

Dibutyl phthalate, SAJ special grade, ≥98.0%

Sigma-Aldrich

Acetonitrile solution, contains 0.05 % (v/v) trifluoroacetic acid

Sigma-Aldrich

Acetonitrile solution, contains 0.1 % (v/v) trifluoroacetic acid, suitable for HPLC

Sigma-Aldrich

Methanol, suitable for NMR (reference standard)

Sigma-Aldrich

Acetonitrile solution, contains 0.05 % (w/v) ammonium formate, 5 % (v/v) water, 0.1 % (v/v) formic acid, suitable for HPLC

Sigma-Aldrich

Perfluorooctanoic acid, 95%

Supelco

Diisobutyl phthalate, certified reference material, TraceCERT^®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Sigma-Aldrich

Acetonitrile solution, contains 0.1 % (v/v) formic acid, suitable for HPLC

Supelco

Ammonium acetate, LiChropur^™, eluent additive for LC-MS

Sigma-Aldrich

Phthalic acid, puriss. p.a., ≥99.5% (T)

Supelco

Benzyl butyl phthalate, analytical standard

Supelco

Methanol, analytical standard

Sigma-Aldrich

Ammonium acetate, BioUltra, ≥99.0%

Sigma-Aldrich

Ammonium acetate solution, BioUltra, ~5 M in H₂O

Supelco

Bis(2-ethylhexyl) phthalate, PESTANAL^®, analytical standard

Supelco

Bis(2-ethylhexyl) phthalate, Selectophore^™

Sigma-Aldrich

Benzyl butyl phthalate, 98%

Sigma-Aldrich

Methanol, suitable for HPLC, gradient grade, 99.93%

Sigma-Aldrich

Diisobutyl phthalate, 99%

Sigma-Aldrich

Phthalic acid, reagent grade, 98%

Sigma-Aldrich

Methanol, anhydrous, 99.8%

Sigma-Aldrich

Phthalic acid, ACS reagent, ≥99.5%