PALLADIUM NITRATE MAGNESIUM-NITRATE MODIFIER FOR ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY .3. DETERMINATION OF MERCURY IN ENVIRONMENTAL STANDARD REFERENCE MATERIALS

被引：54
作者：
WELZ, B
SCHLEMMER, G
MUDAKAVI, JR
机构：
来源：
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 1992年 / 7卷 / 03期
关键词：
ELECTROTHERMAL ATOMIC ABSORPTION SPECTROMETRY; PALLADIUM MODIFIER; MERCURY DETERMINATION; SODIUM CHLORIDE INTERFERENCE; ENVIRONMENTAL SAMPLES;
D O I：
10.1039/ja9920700499
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A single addition of 15-mu-g of palladium is sufficient for 40-60 determinations of mercury if the graphite tube is not heated to temperatures higher than 1500-degrees-C in the cleaning step. A pyrolysis temperature of 400-degrees-C can be used without any loss of mercury, and a characteristic mass of 0.1 ng of mercury was obtained for an atomization temperature of 1000-degrees-C. Interferences caused by high sodium chloride concentrations could be eliminated by using a mixture of 95% argon and 5% hydrogen as the purge gas. Mercury could be determined accurately in Aquatic Plant, Albacore Tuna, River Sediment and Coal Fly Ash reference materials.
引用
收藏
页码：499 / 503
页数：5
相关论文
共 48 条
[41]   Studies on reduction of chloride matrix interferences on determination of germanium using zirconium-ruthenium and palladium-magnesium modifiers by electrothermal atomic absorption spectrometry [J].
Meeravali, Noorbasha N. ;
Reddy, M. A. ;
Kumar, Sunil Jai .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2007, 62 (05) :504-508
[42]   DETERMINATION OF GERMANIUM IN ENVIRONMENTAL-SAMPLES BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY WITH CONTINUOUS-FLOW HYDRIDE GENERATION IN DILUTE PERCHLORIC-ACID SOLUTION [J].
NI, ZM ;
BIN, H .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1995, 10 (10) :747-751
[43]   INTERFERENCE EFFECTS AND THEIR ELIMINATION BY STANDARD ADDITION AND SUCCESSIVE DILUTION METHOD AT THE MERCURY DETERMINATION BY CONTINUOUS-FLOW COLD VAPOR ATOMIC-ABSORPTION SPECTROMETRY [J].
PSZONICKI, L ;
SKWARA, W ;
DUDEK, J .
CHEMIA ANALITYCZNA, 1994, 39 (02) :205-215
[44]   A study of the direct determination of Cd, Cr, Cu, Pb and Zn in certified reference materials of soils by solid sampling electrothermal atomic absorption spectrometry [J].
Toeroek, Peter ;
Zemberyova, Maria .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2011, 66 (01) :93-97
[45]   Slurry preparation by high-pressure homogenization for the determination of heavy metals in zoological and botanical certified reference materials and animal feeds by electrothermal atomic absorption spectrometry [J].
Tan, YX ;
Blais, JS ;
Marshall, WD .
ANALYST, 1996, 121 (10) :1419-1424
[46]   Thermally stabilized iridium on an integrated, carbide-coated platform as a permanent modifier for hydride-forming elements in electrothermal atomic absorption spectrometry .3. Effect of L-cysteine [J].
Tsalev, DL ;
DUlivo, A ;
Lampugnani, L ;
DiMarco, M ;
Zamboni, R .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1996, 11 (10) :989-995
[47]   Indium determination in different environmental materials by electrothermal atomic absorption spectrometry with Amberlite XAD-2 coated with 1-(2-pyridylazo)-2-naphthol [J].
Martínea, ANC ;
Barrera, AB ;
Bermejo, PB .
TALANTA, 2005, 66 (03) :646-652
[48]   DETERMINATION OF AMMONIUM ACETATE EXTRACTABLE MOLYBDENUM IN SOIL, AND AQUA-REGIA (HYDROCHLORIC-ACID AND NITRIC-ACID, 3+1) SOLUBLE MOLYBDENUM IN SOIL AND SEWAGE-SLUDGE BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY [J].
ROWBOTTOM, WH .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1991, 6 (02) :123-127
12345