The use of 8-hydroxypyrene-1,3,6-trisulfonic acid trisodium salt (HPTS) as a colorimetric and green turn-on fluorescent probe for the recognition of arginine and lysine in aqueous solution is described. The limit of detection (LOD) was found to be 1.941 × 10⁻⁶ M, whereas for Lys the LOD was 3.106 × 10⁻⁶ M, respectively. Interestingly, the probe also shows reversibility by addition of tetrabutylammonium phosphate (TBAP).

中文翻译：

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基于8-羟基py-1,3,6-三磺酸三钠（HPTS）的比色和绿色开启荧光传感器，用于检测水溶液中的精氨酸和赖氨酸

描述了使用8-羟基py-1,3,6-三磺酸三钠盐（HPTS）作为比色和绿色开启荧光探针，用于识别水溶液中的精氨酸和赖氨酸。检出限（LOD）的极限被发现是1.941×10 ^-6 男，而对于赖氨酸的检测限为3.106×10 ^-6 男，分别。有趣的是，该探针还通过添加磷酸四丁铵（TBAP）表现出可逆性。