Liquid chromatography-atomic absorption

Blais, J.-S., Huyghues-Despointes, A., Momplaisir, G.-M. and Marshall, W.D. (1991) High-performance liquid chromatography-atomic absorption spectromety interface for the determination of selenoniocholine and trimethylselenonium cations applications to human urine./. Anal. At. Spectrom., 6, 225-232. [Pg.432]

High, K.A., Azani, R., Fazekas, A.F., Chee, Z.A. and Blais, J.-S. (1992) Thermospray-microatomizer interface for the determination of trace cadmium and cadmium-metallothioneins in biological samples with flow injection- and high-performance liquid chromatography-atomic absorption spectrometry. Anal. Chem., 64, 3197-3201. [Pg.435]

N. M. Melo Coelho, C. Parrilla, M. L. Cervera, A. Pastor, M. de la Guardia, High performance liquid chromatography-atomic absorption spectrometric determination of arsenic species in beer samples, Anal. Chim. Acta, 482 (2003), 73-80. [Pg.498]

Liquid Chromatography Atomic Absorption Spectroscopy (LC/AAS) Systems... [Pg.429]

Liquid chromatography-atomic absorption spectrometry (LC-AAS) and liqnid chromatography-optical emission spectrometry (LC-OES) combine the separating power of LC... [Pg.109]

Chana, B.S. and Smith, N.J. (1987). Urinary arsenic speciation by high-performance liquid chromatography/atomic absorption spectrometry for monitoring occupational exposure to inorganic arsenic. Anal. Chim. Acta 197,177-186. [Pg.314]

Robinson, J. W., Boothe, E. D., Speciation of Organo Lead Compounds by T.L.C. and High Performance Liquid Chromatography-Atomic Absorption Spectroscopy. Decomposition of TEL in Sea Water, Spectrosc. Letters 17 [1984] 689/712. [Pg.26]

High, K. A., Blais,J. S., Methven, B. A.J., and McLaren,J.W. (1995). Probing the characteristics of metal-binding proteins using high-performance liquid chromatography-atomic absorption spectroscopy and inductively coupled plasma mass spectrometry. Ajiafysr (London) 120(3), 629. [Pg.222]

A number of tests are available for the chemical characterization of medical device materials to establish material safety and biocompatibility. These tests include infrared analysis, aqueous and non-aqueous physicochemical tests, high-performance liquid and gas chromatography, atomic absorption spectroscopy and inductively coupled plasma spectroscopy, and a variety of mechanical/physical tests. [Pg.2102]

A range of chromatographic techniques coupled to element specific detectors has been used in speciation studies to separate individual organometallic species (e.g., butyltins, arsenic species) and to separate metals bovmd to various biomolecules. The combination of a chromatographic separation with varying instrumental detection systems are commonly called coupled, hybrid, or hyphenated techniques (e.g., liquid chromatography inductively coupled plasma-mass spectrometry (LC-ICP-MS), gas chromatography-atomic absorption spectroscopy (GC-AAS)). The detection systems used in coupled techniques include MS, ICP-MS, atomic fluorescence spectrometry (AFS), AAS, ICP-atomic emission spectrometry (ICP-AES), and atomic emission detection (AED). [Pg.1075]

Pretreatment of the collected particulate matter may be required for chemical analysis. Pretreatment generally involves extraction of the particulate matter into a liquid. The solution may be further treated to transform the material into a form suitable for analysis. Trace metals may be determined by atomic absorption spectroscopy (AA), emission spectroscopy, polarogra-phy, and anodic stripping voltammetry. Analysis of anions is possible by colorimetric techniques and ion chromatography. Sulfate (S04 ), sulfite (SO-, ), nitrate (NO3 ), chloride Cl ), and fluoride (F ) may be determined by ion chromatography (15). [Pg.206]

Inductively coupled plasma atomic emission spectrometry Electrothermal atomic absorption spectrometry High pressure liquid chromatography... [Pg.318]

Zhang X, Cornelis R, De Kimpe J, and Mees L (1996) Arsenic speciation in serum of uraemic patients based on liquid chromatography with hydride generation atomic absorption spectrometry and on-line UV photo-oxidation digestion. Anal Chim Acta 319 177-185. [Pg.110]

In modern times, most analyses are performed on an analytical instrument for, e.g., gas chromatography (GC), high-performance liquid chromatography (HPLC), ultra-violet/visible (UV) or infrared (IR) spectrophotometry, atomic absorption spectrometry, inductively coupled plasma mass spectrometry (ICP-MS), mass spectrometry. Each of these instruments has a limitation on the amount of an analyte that they can detect. This limitation can be expressed as the IDL, which may be defined as the smallest amount of an analyte that can be reliably detected or differentiated from the background on an instrument. [Pg.63]

Principles and Characteristics Plasma source techniques are more widely used in connection with liquid chromatography than atomic absorption spectrometry (see Section 7.3.3). ICP is a natural complement to liquid chromatography, and HPLC-ICP procedures... [Pg.525]

Hydride Generation Atomic Absorption Spectrometry High Performance Liquid Chromatography High Performance Thin-Layer Chromatography High Resolution... [Pg.24]

Measurement techniques that can be employed for the determination of trace metals include atomic absorption spectrometry, anodic stripping voltammetry, differential pulse cathodic stripping voltammetry, inductively coupled plasma atomic emission spectrometry, liquid chromatography of the metal chelates with ultraviolet-visible absorption and, more recently, inductively coupled plasma mass spectrometry. [Pg.128]

When the chelators are actually known, as in the case of industrial materials injected into the environment, it is possible to derive much more information from the analyses. Thus high pressure liquid chromatography has been used to separate the copper chelates of EDTA, NTA, EGTA, and CDTA with the final measurement of copper being made by atomic absorption [422,423]. [Pg.429]

The simplest analytical method is direct measurement of arsenic in volatile methylated arsenicals by atomic absorption [ 11 ]. A slightly more complicated system, but one that permits differentiation of the various forms of arsenic, uses reduction of the arsenic compounds to their respective arsines by treatment with sodium borohydride. The arsines are collected in a cold trap (liquid nitrogen), then vaporised separately by slow warming, and the arsenic is measured by monitoring the intensity of an arsenic spectral line, as produced by a direct current electrical discharge [1,12,13]. Essentially the same method was proposed by Talmi and Bostick [10] except that they collected the arsines in cold toluene (-5 °C), separated them on a gas chromatography column, and used a mass spectrometer as the detector. Their method had a sensitivity of 0.25 xg/l for water samples. [Pg.457]

Another variation on the method [4] with slightly higher sensitivity (several ng/1) used the liquid nitrogen cold trap and gas chromatography separation, but used the standard gas chromatography detectors or atomic absorption for the final measurement. These workers found four arsenic species in natural waters. [Pg.457]

Techniques for analysis of different mercury species in biological samples and abiotic materials include atomic absorption, cold vapor atomic fluorescence spectrometry, gas-liquid chromatography with electron capture detection, and inductively coupled plasma mass spectrometry (Lansens etal. 1991 Schintu etal. 1992 Porcella etal. 1995). Methylmercury concentrations in marine biological tissues are detected at concentrations as low as 10 pg Hg/kg tissue using graphite furnace sample preparation techniques and atomic absorption spectrometry (Schintu et al. 1992). [Pg.355]

High-performance liquid chromatography coupled with fluorescence detection [106, 107] or ion-exchange high-performance liquid chromatography with detection by graphite furnace atomic absorption spectroscopy [108] proved to be sensitive methods, but may lack from limitations in separation power and ease of identification of unknown products. [Pg.420]

Lawrence, J.F., Michalik, P., Tam, G. and Conacher, H.B.S. (1986). Identification of arsenobetain and arsenocholine in Canadian fish and shellfish by high-performance liquid chromatography with atomic absorption detection and confirmation by fast atom bombardment mass spectrometry, J. Agric. Food Chem., 34, 315-319. [Pg.250]

The most important features of liquid membranes are that they olfer highly selective extraction, efficient enrichment of analytes from the matrix in only one step, and the possibility of automated interfacing to different analytical instruments such as liquid chromatography, gas chromatography, capillary zone electrophoresis, UV spectrophotometry, atomic absorption spectrometry, and mass spectrometry [82]. [Pg.578]

Cloud point extraction has been applied to the separation and preconcentration of analytes including metal ions, pesticides, fungicides, and proteins from different matrices prior to the determination of the analyte by techniques such as atomic absorption, gas chromatography, high performance liquid chromatography, capillary zone electrophoresis, etc. [Pg.584]