Improved Detection of Trace Elements in a Silicon Matrix Using a Desolvating Nebulizer System with ICP-MS - Application Note

Inductively coupled plasma mass spectrometry (ICP MS) can routinely provide Aspire PFA Nebulizer Sensitivity Comparison I Recovery Experiment Inductively coupled plasma mass spectrometry (ICP -MS) can routinely provide single digit and sub i l di it d b -ppt d t ti li it f l t Si t detection limits for many elements. Since trace Heated PFA Spray Chamber Heated PFA Spray Chamber element impurities in the silicon used for solar panels can adversely affect the Cyclonic w. Aridus II w. 1 Dilute the prepared Si matrix solution to p p y efficiency of panel operation ICP -MS is commonly used for this application El / Cyclonic w. PFA 20 Aridus II w. PFA 20 F 1. Dilute the prepared Si matrix solution to efficiency of panel operation, ICP MS is commonly used for this application. Element m/z PFA ‐20 PFA ‐20 Factor concentrations up to 5000 mg/L Thi ill d ib th f ti ll d l ICP MS ith / (cps) (cps) concentrations up to 5000 mg/L. This paper will describe the use of a reaction -cell quadrupole ICP -MS with a (cps) (cps) desolvating nebulizer system for detection of trace elements in a Si matrix up Mg 24 5460 18700 3 4 2 Prepare both non spiked and spiked (2 μg/L) Si g y p to 5000 mg/L. The nebulizer system uses a PFA nebulizer / spray chamber with Mg 24 5460 18700 3.4 2. Prepare both non -spiked and spiked (2 μg/L) Si to 5000 mg/L. The nebulizer system uses a PFA nebulizer / spray chamber with a fluoropolymer fluoropolymer membrane desolvator for best resistance to a sample acid membrane desolvator for best resistance to a sample acid In 115 20530 51750 2 5 matrix solutions. matrix of 3 to 5% HF/HNO or 3 to 5% H O Analyte elements of interest In 115 20530 51750 2.5 matrix solutions. matrix of 3 to 5% HF/HNO 3 or 3 to 5% H 2 O 2. Analyte elements of interest i l d Ti V F d M include Ti, V, Fe, and Mo. Ba 138 17990 43530 2 4. 3 Calibrate ICP -MS with multielement standard Ce 140 19490 39800 2 0 3. Calibrate ICP -MS with multielement standard Operating conditions of the reaction cell ICP -MS and the desolvating nebulizer l i (0 / Si) d i Ce 140 19490 39800 2.0 Operating conditions of the reaction cell ICP MS and the desolvating nebulizer solution (0 mg/L Si) and measure recoveries system will be described Figures of merit will include enhanced analyte U 238 17470 35950 2 0 (g ) system will be described. Figures of merit will include enhanced analyte for spiked Si matrix solutions i l d d ili t i ff t d l t i ith hi h U 238 17470 35950 2.0 for spiked Si matrix solutions. signal, reduced silicon matrix effects, and analyte recoveries with a high concentration of silicon