PMID- 32493588
OWN - NLM
STAT- MEDLINE
DCOM- 20210106
LR  - 20210106
IS  - 1873-4324 (Electronic)
IS  - 0003-2670 (Linking)
VI  - 1121
DP  - 2020 Jul 18
TI  - On-line microplasma decomposition of gaseous phase interference for solid 
      sampling mercury analysis in aquatic food samples.
PG  - 42-49
LID - S0003-2670(20)30484-0 [pii]
LID - 10.1016/j.aca.2020.04.057 [doi]
AB  - In this work, dielectric barrier discharge (DBD) was first utilized to eliminate 
      gaseous phase interference from complicated solid sample. So, a novel solid 
      sampling Hg analyzer was first designed using a coaxial DBD reactor to replace 
      catalytic pyrolysis furnace for sensitive mercury determination in aquatic food 
      samples. The Hg analyzer mainly comprised an electrothermal vaporizer (ETV), a 
      DBD reactor to decompose gaseous interfering substances including volatile 
      organic compounds (VOCs), a gold-coil Hg trap to eliminate matrix interference 
      and an atomic fluorescence spectrometer (AFS) as detector. These units were 
      connected by a manifold integrating air and Ar/H(2) (v/v = 9 : 1), fulfilling 
      on-line decomposition of up to 12 mg dried aquatic food powder at ambient 
      temperature. The proposed method detection limit (LOD) was 0.5 mug/kg and the 
      relative standard deviations (RSDs) were within 5% for Hg standards as well as 
      within 10% for real samples, indicating adequate analytical sensitivity and 
      precision. In addition, the on-line DBD reactor consumes only 40 W, which is 
      obviously lower than that (>300 W) of the commercial Hg analyzers; including the 
      sample pre-treatment, the overall analysis could be completed within 5 min. This 
      method is easier, greener and safer for Hg analysis in real samples obviating 
      chemical reagents. The new DBD apparatus can facilitate the miniaturization and 
      portability with low power consumption and instrumental size revealing its 
      promising potential in direct Hg analysis instrumentation development.
CI  - Copyright (c) 2020 Elsevier B.V. All rights reserved.
FAU - Liu, Tengpeng
AU  - Liu T
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.
FAU - Liu, Meitong
AU  - Liu M
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; 
      College of Chemistry, Jilin University, Changchun, 130012, 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 - Zhang, Shanshan
AU  - Zhang S
AD  - Beijing Ability Technology Company, Limited, Beijing, 100081, China.
FAU - Shao, Yunbin
AU  - Shao Y
AD  - Beijing Ability Technology Company, Limited, Beijing, 100081, China.
FAU - Na, Xing
AU  - Na X
AD  - Beijing Ability Technology Company, Limited, Beijing, 100081, China.
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 - Qian, Yongzhong
AU  - Qian Y
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.
LA  - eng
PT  - Journal Article
DEP - 20200427
PL  - Netherlands
TA  - Anal Chim Acta
JT  - Analytica chimica acta
JID - 0370534
RN  - 0 (Gases)
RN  - 0 (Whey Proteins)
RN  - FXS1BY2PGL (Mercury)
SB  - IM
MH  - Food Analysis/instrumentation/*methods
MH  - Gases/*chemistry
MH  - Limit of Detection
MH  - Mercury/*analysis
MH  - Miniaturization
MH  - Spectrophotometry, Atomic
MH  - Whey Proteins/chemistry
OTO - NOTNLM
OT  - Aquatic food samples
OT  - Dielectric barrier discharge microplasma
OT  - Mercury
OT  - Solid sampling electrothermal vaporization
OT  - Volatile organic compounds decomposition
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/06/05 06:00
MHDA- 2021/01/07 06:00
CRDT- 2020/06/05 06:00
PHST- 2020/03/08 00:00 [received]
PHST- 2020/04/20 00:00 [revised]
PHST- 2020/04/25 00:00 [accepted]
PHST- 2020/06/05 06:00 [entrez]
PHST- 2020/06/05 06:00 [pubmed]
PHST- 2021/01/07 06:00 [medline]
AID - S0003-2670(20)30484-0 [pii]
AID - 10.1016/j.aca.2020.04.057 [doi]
PST - ppublish
SO  - Anal Chim Acta. 2020 Jul 18;1121:42-49. doi: 10.1016/j.aca.2020.04.057. Epub 2020 
      Apr 27.