In this study, a spectrophotometric method for fluoride analysis in Cr(VI) electroplating bath was developed. The interfering of metallic impurities and chromium were removed by applying pretreatment process before spectrophotometric measurement. All the spectrophotometric measurements were performed at the wavelength of 510 nm. Metallic impurities and chromium in the Cr(VI) electroplating bath were precipitated in alkaline medium using NaOH and AgNO₃. Molecular electrostatic potential (MESP) analysis was conducted to identify the attractive zones of the molecules. The electronic properties were investigated using DFT method. The results showed that it was possible to determine the amount of fluoride in Cr(VI) electroplating bath with 3% relative error. The computational studies were compatible with the experimental studies.

在这项研究中，开发了一种分光光度法对六价铬电镀液中的氟化物进行分析。在分光光度法测量之前，通过应用预处理工艺去除了金属杂质和铬的干扰。所有分光光度测量均在510 nm的波长下进行。使用NaOH和AgNO ₃在碱性介质中沉淀出Cr（VI）电镀液中的金属杂质和铬。进行分子静电势（MESP）分析以鉴定分子的吸引区。使用DFT方法研究了电子性能。结果表明，可以以3％的相对误差确定Cr（VI）电镀液中的氟化物含量。计算研究与实验研究兼容。