比色管是化学实验中用于目视比色分析实验的主要仪器,可用于粗略测量溶液浓度。比色时将装待测溶液的比色管与一支装标准溶液的比色管置于光照程度相同的白纸前面进行对比,用肉眼观察颜色差异。 比色管的外型与普通试管相似但比试管多一条精确的刻度线并配有橡胶塞或玻璃塞,且管壁比普通试管薄,常见规格有10mL、25mL、50mL三种。
菌体经无菌水洗涤后,转移至比色管中。
The fungal, after washed by sterilized water, was gathered to colorimetric tube.
本仪器由标准色盘、观察光学镜头、光源、比色管组成。
The apparatus consists of the standard color plate, optical lens, the light source was observed, colorimetric tube.
采用比色管水浴消解法消解土壤样品,以原子荧光光度法测定土壤中的汞。
Digest the soil sample by waterbath digestion method with colorimeter. Detect mercury in soil by atomic fluorescence spectrometry.
应用推荐