摘要
为开发安全环保型甲醛检测指示剂,以苯胺、H酸为原料,经重氮化-偶合反应合成了含邻位芳伯胺基偶氮染料H1,通过质谱、红外光谱、核磁共振氢谱等表征证实该产物的结构,研究pH值、温度、甲醛质量浓度等因素对染料H1与甲醛反应性能的影响。结果表明:在甲醛质量浓度(1~7μg/mL)范围内,染料H1水溶液在pH值3.0、90℃条件下对甲醛的灵敏度最高,染料水溶液吸光度值的变化最明显,将染料H1水溶液吸光度值遇甲醛后表现出的有规律的变化应用于甲醛检测,结果显示出染料H1水溶液吸光度值变化与甲醛质量浓度之间表现出较高的线性拟合,线性相关系数为0.998。
In order to develop a safe and eco-friendly formaldehyde detection indicator,a dye H1 containing o-aromatic primary amine azoformaldehyde was synthesized through diazotization-coupling reaction with aniline and H acid as the raw materials,the structure of the synthesized dye was characterized and confirmed by~1HNMR,FTIR and MS,etc.The effects of pH value,temperature and formaldehyde mass concentration,etc.on the reaction properties between the dye H1 and formaldehyde were studied.The results showed that within the mass concentration of formaldehyde(1~7μg/mL),the sensitivity of dye H1 aqueous solution to formaldehyde was the highest at pH 3.0 and 90℃,and the change of the absorbance value of the dye aqueous solution was the most evident.The regular change of the absorbance value of the dye H1 aqueous solution after encountering formaldehyde was applied to the detection of formaldehyde.The results showed that there was a high linear fitting between the change of the absorbance value of the dye H1 aqueous solution and the formaldehyde mass concentration,and the linear correlation coefficient was 0.998.
作者
王宜徽
崔志华
江华
沈加加
高普
陈维国
WANGYihui;CUI Zhihua;JIANG Hua;SHEN Jiajia;GAO Pu;CHEN Weiguo(Engineering Research Center for Eco-Dyeing&Finishing of Textiles,Ministry of Education,Hangzhou 310018 China;College of Materials and Textile Engineering,Jiaxing University,Jiaxing 314001,China;College of Advanced Materials Engineering,Jiaxing Nanhu University,Jiaxing 314001,China)
出处
《浙江理工大学学报（自然科学版）》
2022年第4期550-555,共6页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金
国家自然科学基金项目(21808210)
浙江省自然科学基金项目(LY21B060010)
纺织之光科技教育基金项目(J202108)。
关键词
芳伯胺基
偶氮染料
H酸
苯胺
甲醛检测
环保
aromatic primary amine base
azo dye
H acid
aniline
formaldehyde detection
eco-friendly
