First time the luminescent switch-on probe using novel water-soluble cyclometallated iridium complex (Ir-dc) has been developed for sensitive and selective detection of gluten in the presence of several interfering elements. Linear concentration range of gluten is obtained from 5 to 200 µg/mL with a limit of detection 2.6 µg/mL. The Ir-dc complex responded to the broad pH range which is advantageous for the detection of gluten in various food samples. Additionally, It has been successfully employed for the detection of gluten in commercial food samples of wheat flour and oats with highest recovery values, indicating applicability of Ir-dc for practical usage.

首次开发了使用新型水溶性环金属化铱配合物（Ir-dc）的发光探针，用于在几种干扰元素存在下灵敏和选择性地检测面筋。面筋的线性浓度范围为5至200 µg / mL，检出限为2.6 µg / mL。Ir-dc复合物对宽的pH范围有响应，这对于检测各种食品样品中的面筋是有利的。此外，它已成功用于检测具有最高回收率的小麦粉和燕麦的商业食品样品中的面筋，表明Ir-dc在实际应用中的适用性。