摘要：

Hexavalent chromium is known to damage exposed skin, irritate mucous membranes, produce pulmonary sensitivity, create dental erosion, cause loss of weight, induce renal damage, and target the respiratory tract and skin 1 U.S. EPA has designated Cr(VI) as a carcinogenic, substance that may cause a range of diseased from dermatitis to lung and kidney cancer, Considerable interest has been arose for Cr(VI) in waste water based on a synchronous fluorexcence and absorbance renewable drop sensor. P. K. Dasgupta et al4 has intensively investigated liquid drops and films as analytical devices, The unique features of a liquid drip can be characterized in its reproducibility, renewability, defined volume and lack of containment walls, These features.individually or in combination, led to unique systems for certain applications, e.g. windowless optical cells, micro liquid handling vessels, renewable gas sampler, and simple interfaces.

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