비의류제품

0.3 mm diameter flexible amperometric lactate probe. technical rept. oct 92-nov 93

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 531
a flexible lactate electrode was made of 400 plus or minus 100 7 micrometers diameter carbon fibers, epoxy embedded in a 0.3 mm diameter polyimide tubing. the electrode was modified by precipitating on it the relatively insoluble complex formed between 1100 kd partially n-ethylamine quaternized poly((vinylpyridine) os(bipyridine)2cl)cl (pos-ea) and lactate oxidase. the steady-state lactate electrooxidation current, at 2mm lactate concentration and at 22 deg c, was 4oo na. the 5o plus or minus 10 microa/sq cm current density and the 2oma/sq cm,/m sensitivity decreased only by 5 upon increasing the partial pressure of oxygen from 0.0 to 0.2 atm. the electrode retains its sensitivity after dry storage at 4 deg c for 4 months in air but loses at 37 deg c half of its sensitivity in 7 hours through polymer desorption when operated at 0.4v (sce)
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