PMID- 25311486 OWN - NLM STAT- MEDLINE DCOM- 20150518 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1367 DP - 2014 Nov 7 TI - Using pollen grains as novel hydrophilic solid-phase extraction sorbents for the simultaneous determination of 16 plant growth regulators. PG - 39-47 LID - S0021-9673(14)01527-1 [pii] LID - 10.1016/j.chroma.2014.09.071 [doi] AB - In this article, pollen grains were for the first time used as a hydrophilic solid-phase extraction (HILIC-SPE) sorbent for the determination of 16 plant growth regulators (PGRs) in fruits and vegetables. Fourier transform infrared spectroscopy (FT-IR), scanning electronic microscopy (SEM) and nitrogen sorption porosimetry (NSP) were used to investigate the chemical structure and the surface properties of the pollen grains. Pollen grains exhibited an excellent adsorption capacity for some polar compounds due to their particular functional groups. Several parameters influencing extraction performance were investigated. A green and simple HILIC-SPE-method using pollen grain cartridge for purification of fruit and vegetable extractions, followed by ultra-high performance liquid chromatography-triple quadrupole tandem mass spectrometry (UHPLC-MS/MS) was established. Good linear relationships were obtained for 16 PGRs with correlation coefficients (R) above 0.9980. The limits of detection (LODs) of 16 PGRs in cucumber were in the range of 0.01-1.10 mug . kg(-1). Reproducibility of the method was evaluated by intra-day and inter-day precisions with relative standard deviations (RSDs), which were less than 14.4%. We successfully applied this methodology to analyze 16 PGRs in 8 different kinds of fruits and vegetables. The recoveries from samples spiked with 16 PGRs were from 80.5% to 119.2%, with relative standard deviations less than 15.0%. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Lu, Qian AU - Lu Q AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, PR China. FAU - Wu, Jian-Hong AU - Wu JH AD - College of Chemical Engineering, Wuhan Textile University, Wuhan, Hubei 430200, PR China. FAU - Yu, Qiong-Wei AU - Yu QW AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, PR China. FAU - Feng, Yu-Qi AU - Feng YQ AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan, Hubei 430072, PR China. Electronic address: yqfeng@whu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141005 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Plant Growth Regulators) SB - IM MH - Chromatography, High Pressure Liquid MH - Fruit/chemistry MH - Hydrophobic and Hydrophilic Interactions MH - Limit of Detection MH - Plant Growth Regulators/*analysis MH - Pollen/*chemistry MH - Reproducibility of Results MH - Solid Phase Extraction/*methods MH - Spectroscopy, Fourier Transform Infrared MH - Tandem Mass Spectrometry/methods OTO - NOTNLM OT - Hydrophilic solid-phase extraction OT - Plant growth regulators OT - Pollen grains OT - UHPLC-ESI-MS/MS EDAT- 2014/10/15 06:00 MHDA- 2015/05/20 06:00 CRDT- 2014/10/15 06:00 PHST- 2014/08/30 00:00 [received] PHST- 2014/09/25 00:00 [revised] PHST- 2014/09/25 00:00 [accepted] PHST- 2014/10/15 06:00 [entrez] PHST- 2014/10/15 06:00 [pubmed] PHST- 2015/05/20 06:00 [medline] AID - S0021-9673(14)01527-1 [pii] AID - 10.1016/j.chroma.2014.09.071 [doi] PST - ppublish SO - J Chromatogr A. 2014 Nov 7;1367:39-47. doi: 10.1016/j.chroma.2014.09.071. Epub 2014 Oct 5.