PMID- 35063845
OWN - NLM
STAT- MEDLINE
DCOM- 20220208
LR  - 20220208
IS  - 1873-7072 (Electronic)
IS  - 0308-8146 (Linking)
VI  - 379
DP  - 2022 Jun 15
TI  - Ultratrace mercury speciation analysis in rice by in-line solid phase extraction 
      - liquid chromatography - atomic fluorescence spectrometry.
PG  - 132116
LID - S0308-8146(22)00077-2 [pii]
LID - 10.1016/j.foodchem.2022.132116 [doi]
AB  - For the first time, Hg(2+) and methylmercury speciation analysis was accomplished 
      by in-line SPE-LC-AFS. After modification with 0.1 mL of 0.001% (m:v) sodium 
      diethyldithiocarbamate, a C(18) microcolumn retained Hg(2+) and MetHg in rice 
      extract within 3 min; the captured Hg species were separated within 12 min in 
      0.25% (v:v) 2-mercaptoethanol + 60 mmol L(-1) (m:v) ammonium acetate + 4% (v:v) 
      acetonitrile. Under optimized conditions, the detection limits were 0.3 ng L(-1) 
      for Hg(2+) and 0.2 ng L(-1) for MetHg, respectively, with 10 mL injection vs. 
      0.1 mL eluent; in-line SPE achieved  approximately  100x enrichment. Method precision and 
      accuracy were satisfactory at < 2% relative standard deviations (RSDs) for 20 ng 
      L(-1) of Hg(2+) and MetHg and 95-102% recoveries for real rice samples. In-line 
      SPE obviated human involvement and avoided invalid transportation between 
      interfaces, rendering this SPE-LC-AFS method easy, compact, robust, yet sensitive 
      in mercury speciation analysis to uphold food safety.
CI  - Copyright (c) 2022 Elsevier Ltd. All rights reserved.
FAU - Yao, Zhenzhen
AU  - Yao Z
AD  - Institute of Quality Standard and Testing Technology for Agro-products, Chinese 
      Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and 
      Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China; 
      Institute of Quality Standard and Testing Technology, BAAFS (Beijing Academy of 
      Agriculture and Forestry Sciences), Beijing 100097, China.
FAU - Liu, Jixin
AU  - Liu J
AD  - Institute of Quality Standard and Testing Technology for Agro-products, Chinese 
      Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and 
      Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China; 
      Beijing Ability Technology Company, Limited, Beijing 100081, China. Electronic 
      address: ljx2117@gmail.com.
FAU - Mao, Xuefei
AU  - Mao X
AD  - Institute of Quality Standard and Testing Technology for Agro-products, Chinese 
      Academy of Agricultural Sciences, and Key Laboratory of Agro-food Safety and 
      Quality, Ministry of Agriculture and Rural Affairs, Beijing 100081, China. 
      Electronic address: mxf08@163.com.
FAU - Chen, Guoying
AU  - Chen G
AD  - U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional 
      Research Center, 600 E. Mermaid Lane, Wyndmoor, PA 19038, USA.
FAU - Ma, Zhihong
AU  - Ma Z
AD  - Institute of Quality Standard and Testing Technology, BAAFS (Beijing Academy of 
      Agriculture and Forestry Sciences), Beijing 100097, China.
FAU - Li, Bingru
AU  - Li B
AD  - Institute of Quality Standard and Testing Technology, BAAFS (Beijing Academy of 
      Agriculture and Forestry Sciences), Beijing 100097, China.
LA  - eng
PT  - Journal Article
DEP - 20220110
PL  - England
TA  - Food Chem
JT  - Food chemistry
JID - 7702639
RN  - FXS1BY2PGL (Mercury)
SB  - IM
MH  - Chromatography, High Pressure Liquid
MH  - Chromatography, Liquid
MH  - Humans
MH  - *Mercury
MH  - *Oryza
MH  - Solid Phase Extraction
MH  - Spectrometry, Fluorescence
OTO - NOTNLM
OT  - In-line solid phase extraction
OT  - Liquid chromatography - atomic fluorescence spectrometry
OT  - Mercury speciation
OT  - Rice
EDAT- 2022/01/23 06:00
MHDA- 2022/02/09 06:00
CRDT- 2022/01/22 05:40
PHST- 2021/06/29 00:00 [received]
PHST- 2021/12/13 00:00 [revised]
PHST- 2022/01/07 00:00 [accepted]
PHST- 2022/01/23 06:00 [pubmed]
PHST- 2022/02/09 06:00 [medline]
PHST- 2022/01/22 05:40 [entrez]
AID - S0308-8146(22)00077-2 [pii]
AID - 10.1016/j.foodchem.2022.132116 [doi]
PST - ppublish
SO  - Food Chem. 2022 Jun 15;379:132116. doi: 10.1016/j.foodchem.2022.132116. Epub 2022 
      Jan 10.