Introduction
Inductively coupled plasma mass spectrometry (ICP-MS) is an ideal analytical technique for monitoring trace and major elements in drinking water, offering low detection limits, a wide dynamic range, and multi-element capability.
U.S. EPA Method 200.8 specifies the determination of 21 elements in drinking and environmental waters using ICP-MS. While modern cell technologies, like PerkinElmer’s Universal Cell Technology, reduce spectral interferences, compliance monitoring under the Safe Drinking Water Act still relies on correction equations to handle polyatomic interferences. This places greater importance on instrument stability and overall system performance.
This work demonstrates the ability of the NexION® 1100 ICP-MS to meet and exceed the requirements of EPA Method 200.8. System performance is evaluated in terms of detection limits, accuracy, and stability during extended operation.
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