PMID- 36541929
OWN - NLM
STAT- MEDLINE
DCOM- 20230119
LR  - 20230210
IS  - 1520-6882 (Electronic)
IS  - 0003-2700 (Linking)
VI  - 95
IP  - 2
DP  - 2023 Jan 17
TI  - Novel Platinum-Nickel Composite Trap for Simultaneous and Direct Determination of 
      Mercury and Cadmium in Soil and Its Mechanism Study.
PG  - 594-601
LID - 10.1021/acs.analchem.2c04438 [doi]
AB  - In this work, following a metal-ceramic heater (MCH) as an electrothermal 
      vaporizer (ETV), a novel composite Pt/Ni trap based on platinizing the foamed 
      nickel was first fabricated to trap Hg and Cd simultaneously. So, a solid 
      sampling Hg-Cd analyzer was developed to simultaneously detect trace Hg and Cd in 
      soil samples, mainly consisting of an MCH, a composite Pt/Ni trap, and an atomic 
      fluorescence spectrometer (AFS). This small-size MCH-ETV system only consumes 100 
      W for the complete vaporization of Hg and Cd in soil matrices. The Pt/Ni trap 
      fulfills the complete trapping of Hg and Cd following the solid sampling MCH-ETV 
      system and then fast releases them by heating. It was proved that trapped and 
      released Hg and Cd by the Pt/Ni trap are atomic species using X-ray photoelectron 
      spectroscopy (XPS) and other approaches; specially, the effective cotrapping of 
      Hg and Cd might be due to forming alloys of Hg + Pt and Cd + Ni on the Pt/Ni 
      trap. Under the optimized conditions, the method detection limits (LODs) of Hg 
      and Cd reached 0.4 mug/kg and 0.04 mug/kg for a 20 mg sample size, the relative 
      standard deviations (RSDs) were within 12% and 8% for soil samples, respectively, 
      and the recoveries ranged from 96% to 105%, indicating favorable analytical 
      sensitivity, precision, and accuracy. The whole analysis time can be controlled 
      within 5 min without the soil digestion process. The proposed Hg-Cd analyzer is 
      thus suitable for rapid detection of Hg and Cd in soil samples with advantages 
      such as simplicity, green, and safety. Further, the proposed solid sampling 
      ETV-composite trap method has a promising application potential in the field and 
      rapid detection for multielements.
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, 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.
AD  - Beijing Ability Technology Company, Limited, Beijing 100081, China.
FAU - Mao, Xuefei
AU  - Mao X
AUID- ORCID: 0000-0002-0415-6657
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 - Huang, Xudong
AU  - Huang 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.
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
PT  - Research Support, Non-U.S. Gov't
DEP - 20221221
PL  - United States
TA  - Anal Chem
JT  - Analytical chemistry
JID - 0370536
RN  - 00BH33GNGH (Cadmium)
RN  - 7OV03QG267 (Nickel)
RN  - FXS1BY2PGL (Mercury)
RN  - 49DFR088MY (Platinum)
RN  - 0 (Soil)
SB  - IM
MH  - *Cadmium/analysis
MH  - Nickel/analysis
MH  - *Mercury/analysis
MH  - Platinum/analysis
MH  - Soil
EDAT- 2022/12/22 06:00
MHDA- 2023/01/20 06:00
CRDT- 2022/12/21 10:23
PHST- 2022/12/22 06:00 [pubmed]
PHST- 2023/01/20 06:00 [medline]
PHST- 2022/12/21 10:23 [entrez]
AID - 10.1021/acs.analchem.2c04438 [doi]
PST - ppublish
SO  - Anal Chem. 2023 Jan 17;95(2):594-601. doi: 10.1021/acs.analchem.2c04438. Epub 
      2022 Dec 21.