Dataset on correlation plots of expected and measured concentrations from ICP-MS for a range of elements in ICP-MS multi-element calibration standard

Inductively-coupled plasma mass spectrometry (ICP-MS) is the workhorse approach for trace metal and metalloid analysis in aqueous matrixes. Designed for detecting various metals and metalloids at parts per billion (ppb) level, the approach has over a decade ago been extended to the low parts per million (ppm) range; thereby, providing analytical simplicity and extending the working range of concentrations for ICP-MS. Presented here is a dataset that describes the correlation plots of expected and measured concentrations from ICP-MS for a range of elements in ICP-MS multi-element calibration standard. Calibration range for all elements was from 0 to 10 ppm, with calibration standards prepared from serial dilution of original stock multi-element calibration solution with 18.2 MΩ ultrapure water as diluent. Instrument used was Agilent 7500a ICP-MS in hot plasma mode (1250 W). Upon successful calibration of all elements in the multi-element calibration standard, the calibration standards (0, 50 ppb, 100 ppb, 500 ppb, 1000 ppb, 5000 ppb, and 10000 ppb) were re-analyzed to yield measured concentrations. These values were subsequently plotted in a scatter plot against expected concentrations of the calibration standards to yield correlation plots between expected and measured concentration for each element in the calibration standards. The dataset comprises data for elements with more than one isotope such as cadmium and lead. Results indicate good correlations between expected and measured concentrations for most elements in the calibration series, but, correlation was observed to be not high at the