Determination of IPTG in Recombinant Human Growth Hormone with Ion Chromatography and Pulsed Electrochemical Detection

Determination of cyanide in urine and saliva samples by ion chromatography with pulsed amperometric detection

ABSTRACT Commonly known as a highly toxic chemical, cyanide is also an essential reagent for many industrial processes. It naturally occurs in plant seeds as cyanogenic glycosides. Another relatively common mode of cyanide exposure is inhalation of environmental tobacco smoke. This study concerns importance to determine cyanide ion in human biological samples. Urine and saliva samples were coll...

Direct determination of free cyanide in drinking water by ion chromatography with pulsed amperometric detection.

Cyanide is a regulated contaminant in drinking water in the United States. This paper describes an ion chromatography method with pulsed amperometric detection (PAD) that directly determines free cyanide in drinking water. Samples are treated with sodium hydroxide to stabilize cyanide and with a cation-exchange cartridge to remove transition metals. Cyanide is separated by anion-exchange chroma...

The Determination of Trace Levels of Cyanide by Ion Chromatography with Electrochemical Detection

An improved method for the determination of trace quantities of free cyanide has been developed using ion chromatography with electrochemical detection. Detection limits of I Ag/L have been achieved with linearity of response over the range I to 1000 pg/L. The precision of replicate injections is 0.6 percent, expressed as the relative standard deviation. The method has been applied to the analy...

Hydrogen Peroxide Detection by Ion Chromatography and Electrochemical Detection

Determination of biogenic amines in alcoholic beverages by ion chromatography with suppressed conductivity detection and integrated pulsed amperometric detection.

The determination of biogenic amines in alcoholic beverages is important to assess the potential risks associated with the consumption of high concentrations of these compounds. In addition, product storage conditions and the length of storage can cause the formation of biogenic amines that reduce product quality. We report a new method using cation-exchange chromatography with either suppresse...