Photostable optical oxygen sensing material: Platinum tetrakis(pentafluorophenyl)porphyrin immobilized in polystyrene
Photostable optical oxygen sensing material: Platinum tetrakis(pentafluorophenyl)porphyrin immobilized in polystyrene
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DOI：
10.1039/a701130j
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发表时间：
1997-06-01
期刊：
影响因子：
--
通讯作者：
Okura, I
中科院分区：
文献类型：
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作者：
Lee, SK;Okura, I
研制了一种基于铂四(五氟苯基)卟啉(PtTFPP)的氧敏材料，并用固定在聚苯乙烯(PS)聚合物中的PtTFPP分子的氧猝灭对其进行了表征。这是一种光稳定的传感材料，具有最小的恶化(在508 nm激发下连续照射50h后，初始强度仅下降9.2%)。PtTFPP/PS膜的信号变化很大，能够以良好的灵敏度定量氧气(I-0/I-100>；3)。S脱氧到有氧状态的反应时间为18分钟，反之为1分钟。
An oxygen sensing material based on platinum tetrakis(pentafluorophenyl) porphyrin (PtTFPP) has been developed and characterized using luminescence quenching by oxygen of PtTFPP molecules immobilized in polystyrene (PS) polymer. This is a photostable sensing material that exhibits minimal deterioration (only 9.2% decrease of initial intensity after continuous illumination for 50 h with excitation at 508 nm). The signal changes of the PtTFPP/PS membrane are large enough to allow quantification of oxygen with good sensitivity (I-0/I-100 > 3). Response times are 18 s for de-oxygenated to oxygenated conditions and 1 min for the reverse conditions.