DETERMINATION OF HYDROPHILIC THIOLS IN SEDIMENT POREWATER USING ION-PAIR LIQUID-CHROMATOGRAPHY COUPLED TO ELECTROCHEMICAL DETECTION

被引：51

作者：

SHEA, D ^{[1
]}

MACCREHAN, WA ^{[1
]}

机构：

[1] NBS, CTR ANALYT CHEM, GAITHERSBURG, MD 20899 USA

来源：

ANALYTICAL CHEMISTRY | 1988年 / 60卷 / 14期

关键词：

D O I：

10.1021/ac00165a020

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Twelve hydrophilic thiols in sediment porewater samples from the Chesapeake Bay were determined by reversed-phase high-performance liquid chromatography using trihaloacetate ion-pairing agents with amperometric detection at a mercury-film/gold electrode. The detection limit is about 2 pmol, and the precision is better than 3% at the 100-pmol level. Glassy carbon and bare gold electrodes were also examined but were found to have higher residual currents and were subject to more interferences than the mercury-film/gold electrode. The stability of thiols with respect to oxidation, in both standard solutions and samples, was also investigated under various conditions.

引用

页码：1449 / 1454

页数：6

共 24 条

[1] ORTHO-PHTHALALDEHYDE DERIVATIVES OF AMINES FOR HIGH-SPEED LIQUID-CHROMATOGRAPHY ELECTROCHEMISTRY [J].

ALLISON, LA ;

MAYER, GS ;

SHOUP, RE .

ANALYTICAL CHEMISTRY, 1984, 56 (07) :1089-1096

[2] DUAL ELECTRODE LIQUID-CHROMATOGRAPHY DETECTOR FOR THIOLS AND DISULFIDES [J].

ALLISON, LA ;

SHOUP, RE .

ANALYTICAL CHEMISTRY, 1983, 55 (01) :8-12

[3]

BALZER W, 1981, MARINE ORGANIC CHEM, pCH13

[4] ORGANO-SULFUR COMPOUNDS IN SEDIMENTS OF THE PUGET SOUND BASIN [J].

BATES, TS ;

CARPENTER, R .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1979, 43 (08) :1209-1221

[5] A NEW ROUTE TO TRIS(DIMETHYLTIN-SULFIDE) WITH TETRAMETHYLTIN AS CO-PRODUCT - THE WIDER IMPLICATIONS OF THIS AND SOME OTHER REACTIONS LEADING TO TETRAMETHYL-TIN AND TETRAMETHYL-LEAD FROM IODOMETHANE [J].

CRAIG, PJ ;

RAPSOMANIKIS, S .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1982, (02) :114-114

[6] CATHODIC STRIPPING VOLTAMMETRY .1. DETERMINATION OF ORGANIC SULFUR-COMPOUNDS, FLAVINS AND PORPHYRINS AT THE SUB-MICROMOLAR LEVEL [J].

FLORENCE, TM .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1979, 97 (02) :219-236

[7] EFFECTS OF SAMPLING TECHNIQUE ON MEASUREMENTS OF POREWATER CONSTITUENTS IN SALT-MARSH SEDIMENTS [J].

HOWES, BL ;

DACEY, JWH ;

WAKEHAM, SG .

LIMNOLOGY AND OCEANOGRAPHY, 1985, 30 (01) :221-227

[8] LIQUID-CHROMATOGRAPHIC DETERMINATION OF GLUTATHIONE WITH ELECTROCHEMICALLY PRETREATED GLASSY-CARBON ELECTRODE [J].

IRIYAMA, K ;

IWAMOTO, T ;

YOSHIURA, M .

JOURNAL OF LIQUID CHROMATOGRAPHY, 1986, 9 (05) :955-969

[9]

Jocelyn P.C., 1972, Biochemistry of the SH group: the occurrence, chemical properties, metabolism and biological function of thiols and disulphides

[10] ELECTRODE PROCESSES OF SULFHYDRYL-DISULFIDE SYSTEM .3. CYSTEINE AT PLATINUM AND GOLD ELECTRODES [J].

KORYTA, J ;

PRADAC, J .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1968, 17 (1-2) :185-&

← 1 2 3 →