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在Na2SO3化学除氧的十二烷基硫酸钠(SDS)胶束体系中,以TlAc为重原子微扰剂,进行了维生素K4的室温光法(RTP)测定.研究发现样品温度对RTP发射强度有影响,重原子Tl/SDS有一个临界比率值为40%,到此临界比率值后能获得高的RTP值.介质pH、Na2SO3、SDS及TlAc浓度不仅影响RTP强度,而且影响体系的除氧速度,最佳pH值范围在7.0～7.8之间,分析校正曲线在1×10-6mol/L～8×10-6mol/L和1×10-5mol/L～4×10-5mol/L呈良好的线性关系,方法的检出限(DL)为2.1×10-6mol/L,相对标准偏差(RSD)为4.4%
In the Na2SO3 chemical deoxygenated sodium dodecyl sulfate (SDS) micellar system, TlAc as a heavy atom perturbation agent, vitamin K4 room temperature calendaring method (RTP) determination was found that the sample temperature RTP emission Intensity has an impact, heavy atom Tl / SDS has a critical ratio of 40%, to the critical ratio value to obtain a high RTP value.Medical pH, Na2SO3, SDS and TlAc concentrations not only affect the RTP intensity, but also affect the system except Oxygen speed, the optimum pH range of 7.0 to 7.8, the calibration curve in the 1 × 10-6mol / L ~ 8 × 10-6mol / L and 1 × 10-5mol / L ~ 4 × 10-5mol / L The detection limit (DL) was 2.1 × 10-6mol / L, and the relative standard deviation (RSD) was 4.4%