| 摘要 |
<p>The invention relates to a method for analyzing the content of gaseous components in liquid media and equipment comprising means for sampling liquid and a gas analyzer. The liquid sample is mixed with an acid or base to adjust its pH sufficiently for releasing the gaseous component, and a carrier gas is supplied to said mixture, whereupon the released gases are mixed with additional amounts of carrier gas and then stripped from the liquid phase and transferred to a gas analyzer. For releasing hydrogen sulphide or hydrogen cyanide the liquid sample is preferably mixed with sulphuric acid. Air can be applied as carrier gas and part of it be supplied to the liquid mixture at or in a pump ahead of a mixer for acid or base, liquid sample and air. The sampling means comprises a collecting/settling vessel (14) into which liquid sample is sucked through pipe (13) by means of vacuum in pipe (25) and transferred through pipe (15) to a sample receiver (16) by means of pressurized air, and further in pipe (1) to be mixed with acid or base from pipe (2) and carrier gas from pipe (3) to a mixer (5). The invention is especially applicable for analyzing gas like H2S in liquids containing particulate matter.</p> |
