PMID- 19271519
OWN - NLM
STAT- MEDLINE
DCOM- 20100528
LR  - 20131121
IS  - 1000-0593 (Print)
IS  - 1000-0593 (Linking)
VI  - 28
IP  - 11
DP  - 2008 Nov
TI  - [Determination of total arsenic and mercury in the fucoidans by hydride 
      generation atomic fluorescence spectroscopy].
PG  - 2691-4
AB  - In the present article, the method of high pressure microwave digestion and 
      hydride generation atomic fluorescence spectroscopy (HG-AFS) was used for the 
      determination of total arsenic and mercury in fucoidans, and the detecting 
      conditions were optimized, including instrument working parameters, such as 
      atomic temperature, lamp current, high voltage of PMT etc, and the conditions of 
      hydride generation, such as the acid concentration of loading fluid, speed of 
      carrying gas, the concentration of KBH4 etc. The result shows that there are good 
      linear relations between fluorescence intensity and the concentrations of arsenic 
      and mercury where their concentrations are 0-200 microg x L(-1) and 2.0-10.0 
      microg x L(-1), respectively, and the related coefficient of arsenic is 0. 999 9 
      and that of mercury's is 0. 999 8. The blanks of samples were detected constantly 
      (n = 10), and the detection limit of this method is 0.173 ng x kg(-1) for total 
      arsenic and 0.012 2 ng x kg(-1) for mercury. In order to do precise analysis, the 
      samples were detected constantly (n = 8), and the relative standard deviations 
      (RSDs) of arsenic and mercury are 1.09% and 1.69%, severally. The quantitative 
      arsenic and mercury were added into the samples before they were digested, and 
      the recovery range is 93.31%-100.9% for arsenic and 91.21%-106.1% for mercury. 
      The contents of total arsenic and mercury in fucoidans before desalted by 
      ultrafiltration are 2.78 mg and 0.125 mg x kg(-1), respectively. Nevertheless, 
      the contents of total arsenic and mercury in fucoidans desalted by 
      ultrafiltration are 2.26 mg x kg(-1) and 0.119 mg x kg(-1), severally.
FAU - Liu, Yi-Xiang
AU  - Liu YX
AD  - Bioengineering School of Jimei University, Xiamen 361021, China. lyxjmu@163.com
FAU - Wu, Yong-Pei
AU  - Wu YP
FAU - Wang, Li
AU  - Wang L
FAU - Huang, Zhi-Yong
AU  - Huang ZY
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Guang Pu Xue Yu Guang Pu Fen Xi
JT  - Guang pu xue yu guang pu fen xi = Guang pu
JID - 9424805
RN  - 0 (Polysaccharides)
RN  - 9072-19-9 (fucoidan)
RN  - FXS1BY2PGL (Mercury)
RN  - N712M78A8G (Arsenic)
SB  - IM
MH  - Arsenic/*analysis
MH  - Mercury/*analysis
MH  - Polysaccharides/*chemistry
MH  - *Spectrometry, Fluorescence
EDAT- 2009/03/11 09:00
MHDA- 2010/05/29 06:00
CRDT- 2009/03/11 09:00
PHST- 2009/03/11 09:00 [entrez]
PHST- 2009/03/11 09:00 [pubmed]
PHST- 2010/05/29 06:00 [medline]
PST - ppublish
SO  - Guang Pu Xue Yu Guang Pu Fen Xi. 2008 Nov;28(11):2691-4.