Determination of cadmium in sediment by isotope dilution inductively coupled plasma mass spectrometry using a co-precipitation separation technique

Certified sediment reference materials for trace element analysis from the National Metrology Institute of Japan (NMIJ)

“…The procedure for ID measurement was almost identical with those described in previous papers [2,4]. The measured isotope pairs in the ID measurement were 52 Cr/ 53 Cr, 60 Hg were also measured to determine the isotopic abundance ratio of Pb in the sample and the standard solution used for the reverse-ID procedure.…”

“…The digestion procedure for most elements except for Cr and Hg have been described in previous papers [2,3,4]. In brief, the sample (ca.…”

Determination of Sub-ppb Cadmium in Urine by Solid-Phase Extraction and Inductively Coupled Plasma–Mass Spectrometry

“…1 Inductively coupled plasma-mass spectrometry (ICP-MS) can detect Cd at levels of nanograms per liter; 2 however, mass spectral interference by molybdenum oxide (MoO) generated in a hot plasma has been observed in both sediment analysis 3 and biological samples. 4,5 Molybdenum (Mo) is an essential element for nutrition, and enters the human body primarily in the diet with an average dietary daily intake of approximately 100 mg day -1 .…”

Oxygenation Mechanism of Ions in Dynamic Reaction Cell ICP-MS

“…2 Interferences caused by coexisting compounds in samples can be avoided by sample pretreatment in which the interfering compounds are removed by, for example, coprecipitation or ion-exchange. [3][4][5] Uses of a desolvation apparatus for sample introduction, of a low-temperature plasma, and a high-resolution mass spectrometer are effective ways of reducing and removing interferences. [6][7][8][9][10][11] In recent years, methods employing collision/reaction gas cells using He, H2, NH3, CH4, or O2 have been introduced into ICP-MS to remove the interferences of coexisting ions.…”