Effect of signal acquisition mode on isotope ratio precision and accuracy in ICP-quadrupole-MS analysis

Optimisation of a current generation ICP-QMS and benchmarking against MC-ICP-MS spectrometry for the determination of lead isotope ratios in environmental samples

“…The precision of Pb isotope ratio measurements generally improves with increasing Pb concentration as counting statistics improve (19). However, at high concentrations the ion counter detector used with the ICP-QMS employed in this study trips to an analogue signal, resulting in non-linearity caused by measuring isotopes in different detector modes, with added uncertainty due to the application of a gain correction between the two detector types (20,23). Thus, individually tailored dilutions of each sample digest were carried out, with 2% HNO3, using previously quantified total concentrations of Pb.…”

Dispersive Micro-solid Phase Extraction with Fibrous TiO2@g- C3N4 Nanocomposites Coupled with ICP-MS for the Determination of Cobalt and Nickel in Environmental and Biological Samples

“…[13][14][15] Solid phase extraction (SPE) is a preferred technique due to its merits such as simple operation, higher enrichment factor, and the ability to combine with other detection techniques. [16][17][18][19] However, this procedure suffers from certain shortcomings such as solvent loss, large secondary waste, and a long procedure. 20 In addition, a liquid sample is passed through a column containing an adsorbent in conventional SPE.…”