The reaction of chlorochromate anion (CrO₃Cl⁻) with rhodamine 6G hydrochloride dye (RG⁺) results in the formation of complex ion associate [RG⁺·CrO₃Cl⁻] in non-aqueous medium. This study aimed to use t-octylphenoxypolyethoxyethanol polymer (Triton X-100) in [RG⁺·CrO₃Cl]_org extraction system to enhance the sensitivity of Cr(VI) under the optimized conditions. The produced highly electron deficient system in the binary ion associate [RG⁺·CrO₃Cl] of Cr(VI) transforms into an adduct [(CrO₃Cl⁻·RG⁺)·TX-100·nS]_org in the presence of Triton X-100 (TX-100). This transformation enhanced the analytical response of the produced adduct specie in the organic phase by over 75%. The adduct formation via ether oxygen of TX-100 and the possible existence of H-bonding between NH of RG⁺ and ether oxygen of TX-100 are directly related to the increase in the molar absorptivity and this phenomenon was monitored by UV–Vis spectrophotometric measurement at λ_max = 534 nm. The current study discusses the role of different surfactants and its influence on the extraction of Cr(III) & Cr(VI) species. A detailed proposed mechanism, structure, stoichiometry, and extraction equilibria for the produced adduct is presented. Cr(III) species after oxidation with H₂O₂ in KOH media were also determined by the proposed procedure. At optimal conditions, the method exhibited a wide linear range 0.0245–1.5 μg mL⁻¹ with detection and quantification limits of 0.0073 μg mL⁻¹ and 0.025 μg mL⁻¹, respectively. This enhancement principle in the extraction systems could be extended to other class of surfactants and/or nano materials.

氯阴离子的反应（CRO ₃氯^- ）罗丹明6G盐酸盐染料（RG ⁺）导致复杂的离子缔合体的形成[RG ⁺ ·的CrO ₃氯^- ]在非水性介质中。这项研究旨在在[RG ⁺ ·CrO ₃ Cl] _org萃取系统中使用叔辛基苯氧基聚乙氧基乙醇聚合物（Triton X-100）在优化的条件下提高Cr（VI）的灵敏度。所产生的高度缺电子体系在二进制离子缔[RG ⁺ ·的CrO ₃ CL]的Cr（VI）变换成的加合物[（CRO ₃氯^- ·RG在Triton X-100（TX-100）的存在下⁺）·TX-100·nS] _org。这种转变将有机相中生成的加合物种类的分析响应提高了75％以上。加成物形成通过TX-100的醚氧和RG的NH之间氢键的可能存在的⁺和TX-100的醚氧直接相关的摩尔吸光系数的增加，并且这种现象被通过UV-Vis分光光度法监测_λmax下的测量 = 534 nm。当前的研究讨论了不同表面活性剂的作用及其对Cr（III）和Cr（VI）物种提取的影响。提出了详细的拟议的机制，结构，化学计量和提取的平衡为生产的加合物。还通过提出的方法确定了在KOH介质中用H ₂ O ₂氧化后的Cr（III）种类。在最佳条件下，该方法表现出宽的线性范围0.0245-1.5微克毫升^-1与0.0073微克mL的检测和定量限^-1和0.025微克毫升^-1分别。萃取系统中的这种增强原理可以扩展到其他类型的表面活性剂和/或纳米材料。