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固体进样分析中,选择一个合适的进样方式是至关重要的。自制进样器是取一支手动进样用的塑料头及一小段透明塑料管,塑料管外径1.6mm、内径0.9mm,长15mm,将塑料头尖端截去约12mm,至使塑料管恰好伸进又能定位,露在管外长度约5mm。取样时将此取样器插入粉末中数次,至一定量的样品进入管内,擦掉沾在取样器外的样品后,放在一折成M形的干净滤纸上称重,然后将尖端插入石墨管进样口,用50μl微量进样器将样品吹至平台上,取出进样器,重新称量差减法得到进样量。
In solid sample analysis, it is crucial to choose a suitable injection method. Homemade sampler is to take a manual injection with a plastic head and a short transparent plastic tube, plastic tube diameter 1.6mm, an inner diameter of 0.9mm, length 15mm, the plastic tip cutting about 12mm, to make the plastic tube just Reach and can be positioned, exposed outside the tube length of about 5mm. When sampling, insert the sampler into the powder several times until a certain amount of sample enters the tube. Wipe the sample out of the sampler and weigh it on a clean M-shaped filter. Insert the tip into graphite Tube Inlet, use a 50 μl microinjector to blow the sample onto the plateau, remove the injector and reweigh the difference to obtain the sample volume.