Preconcentration and flame atomic absorption spectrometry determination of cadmium in mussels by an on-line continuous precipitation–dissolution flow system

Atomic spectrometry update. Clinical and biological materials, foods and beverages

“…10 Somewhat similar in principle was an FI system, which involved precipitation of Cd as an ion pair between tetraiodocadmate and quinine. 248 The precipitate was then dissolved with C 2 H 5 OH for determination by FAAS. A sample volume of 15 ml was taken and a concentration up to 32-fold was achieved.…”

“…262 Lower concentrations of Cu 263 and of Fe III 230 were determined using on-line separation techniques. On-line preconcentration methods were developed to measure Cd in mussels, 248 Pb in seafoods, 245 and Cu 263 and Pb 264 in water, with determination by FAAS. Impressive enhancement factors (up to 340 times) were reported using these rapid procedures.…”

“…In a number of papers ETAAS was used to measure the metal in seafoods, meat products and drinking water samples (see Table 1), and also for the quantitation of Cd-containing species in spinach and radish after separation by SEC. 292 Flame AAS was seen to be suitable when some form of preconcentration was included 248,249 or with atom trapping. 293 In an interesting study from Japan, dietary intakes of Cd were measured in duplicate diets collected in 1977-1981 and again in 1991-1997.…”

“…Preconcentration of Cd by on-line continuous precipitation-dissolution FIA and FAAS was described and applied to the analysis of mussels. 248 An equally elaborate on-line system for preconcentration of Pb in seafoods involved the use of a minicolumn packed with functionalised polyurethane foam 245 (see section 2.1.3).…”

Determination of trace metals by voltamperometry in zebra mussel (Dreissena polymorpha) employed as environmental bio-indicator

“…Automated ultrasonic slurry sampling and microwave-assisted digestion was employed to quantify arsenic with electro thermal atomic absorption spectroscopy (14). Flame atomic absorption spectrometry and flow injection analysis were employed for finding out cadmium in mussels (15). Apart from spectroscopic techniques, a rapid voltammetric method has been developed for the trace determination of copper in fish samples (16).…”