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tingsy

新虫 (初入文坛)

[求助] 请教文献中这个铂电极应该用哪种?铂丝还是铂片? 已有1人参与

请教一下,该文献中用的应该是铂丝电极还是铂片电极?
The platinum electrodes were washed ultrasonically with hexane, acetone, isopropanol and distilled water. Then, they
were heated at 60◦C for 30 s with a solution comprising a 1:1:5 volume ratio of aqueous ammonia (0.1 M), hydrogen
peroxide (20%) and distilled water. The electrode surfaces were then polished with 0.05-m alumina slurry paste and
any residual abrasive particles were removed ultrasonically in water. After polishing, the glassy carbon electrode was
rinsed with potassium hydroxide solution and finally soni-cated in an ethanol and water mixture. An exactly weighed
amount of microgel particles, 3 mg, was placed and held at the electrode surface by a dialysis membrane. The resulting
electrode was washed with phosphate buffer and +0.6 V ver-sus SCE (GOx-platinum electrode) and −0.1 V versus SCE
(PPO-glassy carbon electrode) constant potential was applied until the background current decreased to a constant level.
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olea

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【答案】应助回帖

感谢参与,应助指数 +1
我觉得biosensor里面应该是铂盘电极用的比较多,相对铂丝和铂片要容易打磨一些,重现性也好些
2楼2015-09-09 10:21:04
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olea

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补充一下,因为你这个Pt电极是用来做工作电极的不是作对电极
3楼2015-09-09 10:22:59
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tingsy

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引用回帖:
3楼: Originally posted by olea at 2015-09-09 10:22:59
补充一下,因为你这个Pt电极是用来做工作电极的不是作对电极

像该文献所说的,最后用透析袋包裹样品在电极的表面,请问该如何操作更为妥当呢?
4楼2015-09-09 10:25:27
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