X-ray microdetermination of chromium, cobalt, copper, mercury, nickel, and zinc in water using electrochemical preconcentration

Spectroelectrochemical Sensing Based on Attenuated Total Internal Reflectance Stripping Voltammetry. 1. Determination of Lead and Cadmium

“…Although the use of current as the measured analytical signal predominates in SV, the electrochemical deposition step at solid electrodes has been coupled successfully with different spectroscopic techniques, such as atomic absorption spectroscopy, , inductively coupled plasma atomic emission spectroscopy, , neutron activation analysis, X-ray fluorescence, and Mossbauer spectroscopy …”

Specimen Preparation and Presentation

“…Many different chemical and physical preconcentration techniques have been proposed, including surface adsorption on activated carbon [18] electrodeposition [19], precipitation chromatography [20], liquid/liquid extraction [21], immobilized reagents [22], preconcentration on ion exchange treated polyurethane foam [23], plus a variety of other techniques well known to the analytical chemist. However, by far the most popular, and also the most successful, techniques have been those based on the use of ion exchange resin.…”

Determination of trace metal impurities in high purity silver by two step selective precipitation separation followed by neutron activation analysis

“…Among sample preconcentration methods, solid-liquid extraction, 10,14 ion exchange, 12 coprecipitation 5,7 and electrodeposition 4,[15][16][17][18][19] are most commonly used for the separation of trace impurities from the sample matrix. However, in these multi-stage combined procedures there is a risk of increasing contamination and consequent worsening of the detection limits.…”