Determination of Mercury(II) Ion by Electrochemical Cold Vapor Generation Atomic Absorption Spectrometry

Determination of mercury(II) ion by electrochemical cold vapor generation atomic absorption spectrometry.

A technique for determination of mercury is described; it is based on electrolytic reduction of Hg(II) ion on a graphite cathode, the trapping of mercury vapor and its volatilization into a quartz tube aligned in the optical path of an atomic absorption spectrometer. The electrochemical cell consisted of a graphite cathode and an anode operating with constant direct current for the production o...

Determination of mercury in the urine by atomic absorption spectrometry - cold vapor technique

Urine is a liquid waste product of the body. Substances that are ingested and fail to be apsorbed are excreted, solid waste through the intestines, the urine through the kidney and ureter and another fluid from the body through perspiration. Determination of mercury content of urine is not included in routine examinations, but mercury can be present in urine at concentrations that could have se...

Use of Different Gold Amalgamation Techniques in Mercury Determination by Cold Vapor Atomic Absorption Spectrometry

Determination of As, Se and Hg in Waters by Hydride Generation/Cold Vapor Atomic Absorption Spectroscopy

Contamination of industrial and municipal water supplies with arsenic (As), selenium (Se), and mercury (Hg) can occur from natural deposits, industrial discharge, runoff from mining, landfill and agricultural operations. Consumption of contaminated water can cause skin damage (As), kidney and nervous system damage (Hg) and numbness in the fingers and toes (Se).1 The U.S. Environmental Protectio...

Determination of Gold by High-Resolution Continuum Source Atomic Absorption Spectrometry with Chemical Vapor Generation

Avaliou-se o potencial analítico da geração de vapor químico e da espectrometria de absorção atômica com fonte contínua de alta resolução com atomização em tubo de quartzo na determinação de ouro. As espécies voláteis de ouro foram formadas pela reação com tetraidroborato(III) de sódio na presença de ácido clorídrico. Investigou-se a influência de brometo de didodecil dimetilamônio (DDAB) e die...