Patent ID: 8250908
Filing Date: 2012-08-28
Classification: B01L,G01N

Abstract:
1. A method of detecting a target material in a liquid sample by using a wave, the method comprising: supplying an input wave signal to a first liquid sample that does not comprise the target material, and measuring a first output wave signal from the first liquid sample; supplying an input wave signal to a second liquid sample that is subject to the detecting the target material, and measuring a second output wave signal from the second liquid sample; and comparing the first output wave signal with the second output signal to determine whether there is a difference between the signals, wherein the input wave signals supplied to the first liquid sample and to the second liquid sample have the same frequency and intensity; wherein the output wave signal is measured after a gas in the first and second liquid samples is removed, wherein the first output wave signal is used as a signal base line, and wherein a magnitude of the difference between the signals is proportional to an amount of the target material in the second liquid sample.