White J L
Arch Environ Contam Toxicol. 1975;3(4):461-9. doi: 10.1007/BF02220816.
The relative ease of protonation and/or hydrolysis of s-triazine herbicides due to reactions on soil mineral surfaces may be measured by exposure of films of calcium-saturated montmorillonite to chloroform solutions of the s-triazines for appropriate time periods. s-Triazines susceptible to protonation are transformed into organic cations and adsorbed into the interlamellar region of the montmorillonite. Upon interlamellar adsorption of the s-triazine the concentration becomes sufficiently high to be detected by infrared techniques in the 1500 to 1800 cm-1 region. Hydrolysis of the triazines due to the "surface acidity" of the mineral surface is indicated by formation of a carbonyl band having a frequency at about 1750 cm-1. The relative degree of protonation and hydrolysis has been measured for twenty-seven chloro-, bromo-, methoxy-, and methylthio-s-triazines. These observations aid in predicting physiochemical behavior of s-triazines in soils as well as formulations containing similar mineral surfaces.
由于在土壤矿物表面发生的反应，均三嗪类除草剂的质子化和/或水解相对容易，这可以通过将钙饱和蒙脱石膜暴露于均三嗪类除草剂的氯仿溶液中适当时间段来测定。易质子化的均三嗪类转化为有机阳离子并吸附到蒙脱石的层间区域。在均三嗪类层间吸附后，其浓度变得足够高，可通过红外技术在1500至1800 cm-1区域检测到。由于矿物表面的“表面酸度”导致的三嗪类水解，通过形成频率约为1750 cm-1的羰基带来表明。已对27种氯代、溴代、甲氧基和甲硫基均三嗪类的质子化和水解相对程度进行了测定。这些观察结果有助于预测均三嗪类在土壤以及含有类似矿物表面的制剂中的物理化学行为。
