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西北冶金地质研究所郭小伟等同志研制成功了一种新型的喷雾器,它与经典的喷雾器相比多了一个同心毛细管,可以同时吸入二种溶液,因此称为双毛细管喷雾器。将它用于氢化物法的分析,得到了极好的RSD值(≤1％),且不需要任何惰性气体,对砷、锑等元素灵敏度可提高一个数量级。此双毛细管喷雾器还可起到双叉毛细管的作用,例如在A管喷入分析溶液,在B管喷入标准溶液,即可进行标准加入法测定。在A管喷入分析溶液,在B管喷入释放剂即可消除某些元素的干扰等。
Northwest Institute of Metallurgical Geology Guo Xiaowei and other comrades succeeded in the development of a new type of sprayer, which is compared with the classic sprayer than a concentric capillary, which can inhale two solutions at the same time, so called dual capillary sprayer. Using it for hydride analysis, excellent RSD values (≤1%) are obtained without the need for any inert gas and can increase the sensitivity to arsenic, antimony and other elements by an order of magnitude. This dual-capillary sprayer can also act as a double-ended capillary tube. For example, when the analytical solution is injected into the A tube and the standard solution is injected into the B tube, the standard addition method can be used. A tube into the analysis solution, spray into the release agent in the B tube to eliminate some of the elements such as interference.