On December 20, 2020, Lee, Yesol; Kim, Ra Yun; Eom, In-Yong published an article.Product Details of 79815-20-6 The title of the article was Accuracy Improvement When Determining Copper(II) Ions With Zincon at Acidic Condition. And the article contained the following:
2-Carboxy-2′-hydorxy-5′-sulfoformazylbenzene has been widely used to determine Cu(II) ions. In general, basic pH condition is preferred to enhance the reactivity between metal ions and zincon. But acidic condition can be applied for copper determination because Cu(II) cannot lose reactivity at acidic condition. Also, pH = 5 condition can minimize the interference from zinc which is found together with copper in many samples. However, zincon can be precipitated at acidic condition. We minimized precipitation problem by adding cyclohexanone or the use of lower buffer concentration Using this approach, accuracy was improved from -17.7 to 242.5% to -0.4% to 22.0%. A very linear calibration curve (r2 = 0.9999) was obtained for the copper concentration range of 30-2002 ng/mL. This method was successfully applied to determine copper concentration from discharged water samples. No significant interference was observed and the estimated LOD (S/N = 3) is 5.5 ng/mL. The experimental process involved the reaction of H-Idc-OH(cas: 79815-20-6).Product Details of 79815-20-6
The Article related to zincon copper ion acidic condition linear calibration curve, Water: Analysis and other aspects.Product Details of 79815-20-6
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Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles