| As the sensitivity of such milliammeters is usually low, it is necessary first to amplify the polarographic current. |
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| Oxygen consumption rates were measured, after 1 hr acclimation, in a closed system using a Clark-type polarographic oxygen electrode. |
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| The measurement of arterial PO 2 was revolutionized by the introduction of the polarographic oxygen electrode. |
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| A standard polarographic assay was used to measure oxygen consumption by the isolated mitochondria. |
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| Most popular are the polarographic and the optical spectroscopic methods. |
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| Invasive techniques, such as polarographic oxygen microelectrodes, cannot be used in the lung because of the inaccessibility of the bronchial tree. |
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| The polarographic reduction of isonicotinic and picolinic acids was also studied. |
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| The polarographic experiments were carried out after deaerating experimental solutions by passing pure nitrogen gas for about 20 min. |
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