Investigation of Matrix Effects for Direct Determination of Trace Metals in Seawater Using Direct Sample Insertion -Inductively Coupled Plasma Atomic Emission Spectrometry |
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Authors: | CHAN Wing-Tat GONG Zhen-Bin |
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Institution: | Department of Chemistry, The University of Hong Kong, Pohfulam Rood, Hong Kong |
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Abstract: | Direct sample insertion (DSI) technique is an alternative sample introduction method for inductively coupled plasma atomic emission spectrometry (ICP-AES). Sample introduction efficiency of the DSI technique is 100% versus 3-5% for pneumatic nebulization and 30-40% for ultrasonic nebulization. DSI also has the ability to handle small volume (μL) of solution and small quantity (mg) of solids with little or no sample pre-treatment. |
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