نتایج جستجو برای: chelating resin
تعداد نتایج: 43027 فیلتر نتایج به سال:
Trace element determination in seawater is analytically challenging due to the typically very low concentrations of the trace elements and the potential interference of the salt matrix. A common way to address the challenge is to pre-concentrate the trace elements on a chelating resin, then rinse the matrix elements from the resin and subsequently elute and detect the trace elements using induc...
A simple and accurate low-blank method has been developed for the analysis of total dissolved copper, cadmium, lead, and iron in a small volume (1.3-1.5 mL per element) of seawater. Pre-concentration and salt-separation of a stable isotope spiked sample are achieved by single batch extraction onto nitrilotriacetate (NTA)-type Superflow(®) chelating resin beads (100-2400 beads depending on the e...
Analytical method for the determination of major-to-ultratrace elements in environmental water samples around sewage treatment plant by ICP-MS was examined detail. In present work, solid phase extraction using chelating-resin adopted as preconcentration ultratrace elements. Prior to extraction, were heated with nitric acid and hydrogen peroxide at 200 °C 4h decompose chelating agents contained ...
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