Determination of High Concentration Sodium by Flame Atomic Absorption Spectrophotometry (FAAS) at Different Wavelengths

Introduction

Clinical samples such as intravenous infusion or dialysis solutions contain large amounts of sodium (Na). Hence, dilution is indispensable when analyzing sodium. However, a higher dilution factor is accompanied by a greater risk of dilution error and contamination. Instead of dilution, measurement can be carried out at a lower instrument sensitivity. In FAAS analysis, a method to reduce sensitivity is by changing the burner head angle. Another method is to use different measurement wavelengths. This application news demonstrates the analysis of Na in clinical and multi-element standards using Shimadzu AA-7000 FAAS at different wavelengths.

June 27, 2016 GMT