Made of shaping Polytetrafluorethylene Resin by moulding in ordinary temperature then through high heat sintering.
将乙烯树脂在常温下用模压法成型后再经温结制成。
Sample was digested in polytetrafluorethylene sealed vesssle by nitric acid-perhydrol or high chloric acid-perhydrol, Hg As Pb were simultaneously determinated by ICP-AES.
采用压溶样弹,将样品用硝酸-过氧化氯酸-过氧化溶解后,用ICP-AES法对汞砷铅连续测定。
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