通过LabVIEW软件编译,与FIAlab for Windows软件结合,分别控制光纤光谱仪和微顺序注射-阀上实验室(MicroSIA Lab-on-valve,μSIA-LOV)系统,以光纤作为传导介质,将光纤光谱仪、微顺序注射分析仪和氘灯光源连接,基于样品的紫外吸收特性,...通过LabVIEW软件编译,与FIAlab for Windows软件结合,分别控制光纤光谱仪和微顺序注射-阀上实验室(MicroSIA Lab-on-valve,μSIA-LOV)系统,以光纤作为传导介质,将光纤光谱仪、微顺序注射分析仪和氘灯光源连接,基于样品的紫外吸收特性,实现原位待测样品溶液浓度随时间变化的实时在线监测。编译光谱采集模块,进行样品溶液的光谱扫描,实现对物质的定性分析;编译标准曲线模块,实现对物质的定量分析方法的建立;编译样品检测模块,实现样品溶液浓度的实时连续测定。并以头孢氨苄为例,基于紫外吸收测定模式的LabVIEW软件编译的3个模块,同时对待测样品进行原位和过程分析,与紫外分光光度计测得结果比较(P>0.05),结果无显著性差异。说明LabVIEW软件编译的3个模块可实现待测溶液浓度的原位实时连续监测。展开更多
Trace of Pb(Ⅱ) has been on-line separated and enriched from environmental samples and wastewater by using the self-made alizarin violet functionalized silica gel micro-column coupling with a sequential injection samp...Trace of Pb(Ⅱ) has been on-line separated and enriched from environmental samples and wastewater by using the self-made alizarin violet functionalized silica gel micro-column coupling with a sequential injection sampling technology. The determination is based on the color reaction of Pb(Ⅱ) with iodide and crystal violet to form an ionic association complex in the presence of polyvinyl alcohol and hydrochloric acid. The use of the microcolumn can prevent the interference of most familiar metal ions, and therefore improve the selectivity and sensitivity of this analytical technique. The proposed method was used for the determination of Pb(Ⅱ) in environmental samples and wastewater. No statistically significant difference was observed between the results determined by the present method and atomic absorption spectrometry.展开更多
文摘通过LabVIEW软件编译,与FIAlab for Windows软件结合,分别控制光纤光谱仪和微顺序注射-阀上实验室(MicroSIA Lab-on-valve,μSIA-LOV)系统,以光纤作为传导介质,将光纤光谱仪、微顺序注射分析仪和氘灯光源连接,基于样品的紫外吸收特性,实现原位待测样品溶液浓度随时间变化的实时在线监测。编译光谱采集模块,进行样品溶液的光谱扫描,实现对物质的定性分析;编译标准曲线模块,实现对物质的定量分析方法的建立;编译样品检测模块,实现样品溶液浓度的实时连续测定。并以头孢氨苄为例,基于紫外吸收测定模式的LabVIEW软件编译的3个模块,同时对待测样品进行原位和过程分析,与紫外分光光度计测得结果比较(P>0.05),结果无显著性差异。说明LabVIEW软件编译的3个模块可实现待测溶液浓度的原位实时连续监测。
基金supported by the Science and Technology Department of Henan Province (082300423202 & 102300410194)
文摘Trace of Pb(Ⅱ) has been on-line separated and enriched from environmental samples and wastewater by using the self-made alizarin violet functionalized silica gel micro-column coupling with a sequential injection sampling technology. The determination is based on the color reaction of Pb(Ⅱ) with iodide and crystal violet to form an ionic association complex in the presence of polyvinyl alcohol and hydrochloric acid. The use of the microcolumn can prevent the interference of most familiar metal ions, and therefore improve the selectivity and sensitivity of this analytical technique. The proposed method was used for the determination of Pb(Ⅱ) in environmental samples and wastewater. No statistically significant difference was observed between the results determined by the present method and atomic absorption spectrometry.