摘要
在微乳液为介质中,锰(II)与1-(2-吡啶偶氮)-2-萘酚形成稳定的络合物,使散射光强度急剧增强。用简易荧光计研究了相应的光谱特征,影响因素及适宜的反应条件。在此条件下,锰的浓度在0.2～1.0μg/mL范围内与散射光强度呈线性关系,方法捡出限为0.561μg/mL,可用于鲜姜中锰的测定。
In microemulsion medium, 1- （2 -pyridylazo）- 2- naphthol can react with manganese （Ⅱ） and form stable complex. It can enhance the light scattering intensity sharply. The corresponding characteristics of light scattering spectra, the influencing factors and the optimum conditions of these reactions were studied by easy fluorophotometer. The detection limit and the linear range for manganese （Ⅱ） were 0.561μg/mL and 0.2-1.0μg/mL respectively. The method can apply to the determination of manganese （Ⅱ） in ginger samples with satisfactory results.
出处
《现代食品科技》
EI
CAS
2006年第1期142-143,共2页
Modern Food Science and Technology
基金
江西省自然科学基金项目(0320039)
关键词
锰
姜
光散射法
测定
Manganese
Ginger
Light scattering
