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本文对 YSJ-76型自动液体闪烁计数器实际使用中的几个问题进行了初步探讨。由于效率比英制 NE8312型高,本底相差不多,各种实际~3H 样品的品质因素高出 NE8312型18—50%。外标准源道比曲线比较稳定,在相当宽的范围内对~3H 是一直线。不论~3H 或~(14)C,同一外标准源道比曲线适用于不同闪烁剂,不同溶剂(二氧六环例外),以及不同来源的玻璃、石英、塑料等制成的测量杯。不同化学淬灭剂可用同一标准曲线,颜色淬灭曲线则有分离现象。双标记样品的测量,化学发光的检出等效果也较好。
In this paper, YSJ-76 automatic liquid scintillation counter in the actual use of several issues were discussed. Because the efficiency is higher than that of the British model NE8312, the background is almost the same, and the quality factor of all kinds of actual ~ 3H samples is 18-50% higher than that of NE8312. Outside the standard source than the curve is relatively stable, in a very wide range ~ 3H is a straight line. Regardless of ~ 3H or ~ (14) C, the same external standard source curve applies to different scintillators, different solvents (dioxane exceptions), and measuring cups made of glass, quartz, plastic, etc. from different sources. Different chemical quencher available the same standard curve, the color quenching curve is the separation phenomenon. Dual-labeled sample measurement, chemiluminescence detection and other effects are better.