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分别用紫外分光光度法和荧光光谱法对含萘荧光单体2-(甲基丙烯酰氧)-N,N-二甲基-N-(1-萘甲基)乙基氯化铵和相应的聚合物进行检测。在λmax=222nm下测定不同浓度的含萘荧光单体和聚合物的吸光度,线性相关系数均为0.9995。同时在λex=222nm和λem=332nm条件下研究两者的荧光光谱,样品浓度与荧光强度成良好线性关系,相关系数可达0.9998。对比两种分析方法表明,两者的荧光测定检出限相对较低,操作简单快捷,准确性和可行性高,可很好地监测水处理剂中聚合物的含量,从而实现水处理系统在线检测和自动控制。
The results of UV spectrophotometry and fluorescence spectroscopy showed that the fluorescence of naphthalene containing fluorescent monomer 2- (methacryloyloxy) -N, N-dimethyl-N- (1-naphthylmethyl) Of the polymer. The absorbance of different concentrations of naphthalene-containing fluorescent monomers and polymers were measured at λmax = 222 nm, and the linear correlation coefficients were both 0.9995. At the same time, the fluorescence spectra of both were studied under the condition of λex = 222nm and λem = 332nm. The concentration of the sample was in good linear relationship with the fluorescence intensity, and the correlation coefficient was 0.9998. Compared with the two methods, the detection limits of the two methods are relatively low, the operation is simple and fast, the accuracy and feasibility are high, and the content of the polymer in the water treatment agent can be monitored well, so that the water treatment system online Detection and automatic control.