A New Spray Chamber for Inductively Coupled Plasma Spectrometry

Abstract

A new type of spray chamber is evaluated for inductively coupled plasma emission spectrometry. The new design combines gravitational, centrifugal, turbulent and impact loss mechanisms in one apparatus to efficiently remove large droplets, increase transport efficiency and reduce memory effects. Compared with the commonly used Scott-type spray chamber, the new vertical rotary spray chamber has at least 30% higher sample-utilization efficiency, 2–3 times shorter sample clean-out time, half the cost, and simplified construction. Moreover, it offers somewhat better signal-to-background ratios, detection limits, and precision.