| 摘要 |
PROBLEM TO BE SOLVED: To detect organic halogen compounds that include PCBs contained in soil or ground water, simply on site in a short time with high detection sensitivity. SOLUTION: This method has a pattern acquisition process for adjusting beforehand an organic halogen compound to have a plurality of different concentrations, and acquiring a pattern of change with the time of light emission amount by a contact time with luminous bacteria for each concentration; a classification process for classifying the pattern of the change with time into an initial period, an intermediate period and a latter period of the contact time, based on the difference of declining behavior of the light emission amount in the pattern of the change with the passage of time for each concentration; a measuring process for measuring the change with time of the light emission amount caused by the luminous bacteria, by bringing sample liquid collected from the soil or the ground water into contact with the luminous bacteria; a collation process for collating the measured data of the change with the passage time of a sample, with the pattern of the change with the time, acquired beforehand; and a determination process for determining the concentration of the organic halogen compound in the sample liquid by a phenomenon that in which of the initial period, the middle period or the latter period, the decline behavior of the light emission amount in the collated data of the change with time is manifested. COPYRIGHT: (C)2009,JPO&INPIT
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