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Ionic liquids for the molecular enantiorecognition of free L-T-3, L-T-4 and D-T-4

机译:离子液体,用于自由L-T-3,L-T-4和D-T-4的分子肾上腺素缩减

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摘要

Ionic liquids were proposed for the molecular enantiorecognition of free L-T-3, L-T-4 and D-T-4. L-Phenylalanine tert-butyl ester lactate (L-PheC(4)-Lac), L-alanine tert-butyl ester L-lactate (L-AlaC(4)-Lac) and L-alanine tert-butyl ester nitrate (L-AlaC(4)-NO3) were physically immobilized in a diamond paste. The best linear concentration range for the assay of free L-T-4 was obtained with the microsensor modified with L-AlaC(4)-NO3 (1 x 10(-10)-1 x 10(-8) mol L-1) while for the assay of free L-T-3 and free D-T-4, the microsensor based on L-PheC(4)-Lac provided the best linear ranges of 6 x 10(-12)-1 x 10(-11) mol L-1, and 1 x 10(-11)-1 x 10(-9) mol L-1, respectively. The signature of the analytes (the t(off) value) was different for each sensor, proving their enantiorecognition capacity. The main advantages of the constructed sensors are that the limits of determination achieved for free L-T-3 (6 x 10(-12) mol L-1), free L-T-4 (1 x 10(-6) mol L-1) and free D-T-4 (1 x 10(-11) mol L-1) are low, the sample did not need any pretreatment before measurement, the assay is fast and reliable, and can be performed for both whole blood or pharmaceutical formulations without any sample pretreatment steps for whole blood samples, and by just dissolving the T-4 tablets in distilled water. The recoveries were higher than 99.00% for all thyroid hormones with RSD (%) values lower than 1.00%.
机译:提出了离子液体用于游离L-T-3,L-T-4和D-T-4的分子肾上腺素。 L-苯丙氨酸叔丁酯乳酸盐(L-PHEC(4)-LAC),L-丙氨酸叔丁基酯L-乳酸(L-丙酸(4)-LAC)和L-丙氨酸叔丁酯硝酸盐(L. -alac(4)-NO3)在金刚石糊中物理固定。使用用L- alac(4)-NO3(1×10(-10)-1×10(-8)摩尔L-1)改性的微传感器获得游离LT-4的测定的最佳线性浓度范围对于游离LT-3和游离DT-4的测定,基于L-PHEC(4)-LAC的微传感器提供了6×10(-12)-1×10(-11)mol L-的最佳线性范围1,和1×10(-11)-1×10(-9)mol L-1。分析物的签名(T(OFF)值)对于每个传感器不同,证明其映射能力。构造传感器的主要优点是对游离LT-3(6×10(-12)摩尔L-1),游离LT-4(1×10(-6)摩尔L-1)的测定限制自由DT-4(1×10(-11)mol L-1)低,样品在测量前不需要任何预处理,测定快速可靠,并且可以为全血或药物制剂进行无需全血样品的任何样品预处理步骤,并通过将T-4片剂溶解在蒸馏水中。所有甲状腺激素的回收率高于99.00%,RSD(%)值低于1.00%。

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