论文部分内容阅读
钯(Ⅱ)与亚硝基R盐能生成稳定的络合物,已有文献报导。由试验证明:此络合物最大吸收波长在450毫微米附近,实际应用在520毫微米处为佳,因为此处空白吸收最小。钯在0～200微克/50毫升范围内服从比尔定律。克分子吸光系数ε(σ20)=1.54×10~4。络合物可稳定几天,显色重现性极好。发色迅速,在室温14℃时只需几分钟达到完全,不受温度高低的影响。发色介质以醋酸-硝酸混合酸最佳,醋酸-硫酸混合酸也可以,适应酸度范围较宽;盐酸妨碍发色,不能共存。50毫升发色溶液中分别共
Palladium (Ⅱ) and nitroso R salt can generate stable complexes, has been reported in the literature. The experiment proves that the maximal absorption wavelength of this complex is around 450 nm, and the practical application is at 520 nm, because the blank absorption is the minimum here. Palladium obeys Beer’s law in the range of 0-200 μg / 50 ml. Molecular absorption coefficient ε (σ20) = 1.54 × 10 ~ 4. The complex can be stable for several days with excellent color reproducibility. Hair color quickly, at room temperature 14 ℃ when only a few minutes to reach full, independent of the temperature level. Coloring medium with acetic acid - nitric acid mixed acid best, acetic acid - sulfuric acid mixed acid can also be adapted to a wide range of acidity; hydrochloric acid hinder the hair color, can not coexist. 50 ml hair color solution were total