| 摘要 |
<p>A method and an apparatus for photometrically analyzing the hydrogen sulfide concentration in a stream containing at least a first predetermined concentration of bonded hydrogen sulfide-amines and ultraviolet radiation-absorbing impurities is characterized by isolating a first, reference, sample of the stream and removing the hydrogen sulfide from the reference sample until a second, lower, predetermined concentration remains. Thereafter, the first, reference, sample is photometrically analyzed and a reference signal representative of the ultraviolet radiation-absorbing characteristics of the first, reference, sample is produced. The reference signal is thereafter used in the photometric analysis of a second sample to produce a signal representative only of the hydrogen sulfide concentration in the second sample.</p> |
