How to clean carbon deposits on the ICP torch tube
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The ICP torch tube has become worn out; how can the black carbon deposits on it be cleaned?
Ultrasonically clean in deionized water, then soak in 10% dilute nitric acid overnight
Just do an ultrasound – it’s clean and hassle-free
Reply 1# congliang: Excessive organic matter analysis leads to more carbon buildup. Soaking it in low-concentration nitric acid and then rinsing it with clean water should solve the problem. It is best not to use ultrasound on quartz torch tubes.