Spectrochemical Determination of Boron in Saline Waters

Abstract

calcines, sinters, residues, and other miscellaneous smelter materials. Treatment of such samples with HN03 before evaporation with HC104 is recommended to avoid explosion hazards.Large amounts of iron may be extracted by 25 ml. of isopropyl ether from the perchlorate residue dissolved in 7M HC1. Following the iron separation, evaporate residual ether from the aqueous layer and add 0.5 ml. of HC104. Evaporate to remove HC1 and excess HCIO4 and proceed with the HBr extractions. One gram of ascorbic acid added to the HBr phase 10 minutes prior to adding the isopropyl ether reduces the interference of iron. For high-lead or high-copper materials, use two separate 5-ml. HBr washes rather than a single 10-ml. portion.Any of these modifications is likely to change the over-all efficiency of extraction. Consequently, for accurate results, it is necessary to prepare the standard curve by carrying standard samples through the entire procedure with which the unknown samples are to be treated.

Spectrochemical Determination of Boron and Strontium in Reactor Waters

“…The spectrochemical method has been applied frequently for trace analysis of various water samples including ground and mine waters [3], sea water [4], saline waters [5], mineral waters [6], and also of heavy [7] and high purity water [8]. The emission spectrochemical analysis is included in the literature survey of sensitive methods for determining impurities in reactor coolant water [9].…”

“…The emission spectrochemical analysis is included in the literature survey of sensitive methods for determining impurities in reactor coolant water [9]. Boron and strontium were however determined in only some of these analyses [3,5,6,7] and by spectrochemical techniques other than the copper spark method. We used the copper spark method because of its simplicity and other advantages in analysing radioactive samples.…”