ANALYTICAL METHOD FOR TRACE AMOUNT OF BORON AND DEVICE THEREFOR

摘要

PROBLEM TO BE SOLVED: To quantitatively determine a trace amount of boron of about several μg/L in water and to simultaneously determine, for example, many components such as fluorine, chlorine, nitric acid, nitrous acid and sulfur ion. ;SOLUTION: This boron analysis device is provided with a liquid-feeding pump 11 for force feeding a carrier liquid 1; a sample inlet part 12 for pouring a sample containing a target component to be analyzed in the liquid stream, a column 13 through which the carrier liquid including the sample is passed, a pump 4 for combining a fluorescent reaction solution to the carrier liquid stream at a combining point 15 at a downstream side of the column 13, and a fluorescence detector 9 for detecting a target component to be analyzed subject to a fluorescence at a further downstream side. Here, the device uses chromotropic acid as a reaction substance in a fluorescent reaction solution 2 and is provided with a pump 5 for combining an alkaline solution as a second reaction solution 3, at a further downstream side than the combining point 15. Analysis of many components containing boron can be analyzed simultaneously by providing a second detector 14 at a further upstream side than the combining point 15 of an exit side passage of the column 13.;COPYRIGHT: (C)2000,JPO