| 摘要 |
<p>A method for the rapid, simple and sensitive determination of polyamines in liquids, and a photometer for performing this method are described. A colour formation of the polyamines in a sample is determined by a nearly monochromatic light coming from a conventional LED and filtered by a coloured glass filter. The method supplies a linear concentration vs. transmission relation and may be used for the determination of polyamine concentrations between about 0.5 and 100 mg/l. The method is especially useful for the batchwise or continuous monitoring of polyamine concentrations in boiler water. <IMAGE></p> |
