Derivatization Ion Chromatography for the Determination of Monoethanolamine in Presence of Hydrazine in PHWR Steam-Water Circuits

Table 2

Typical water chemistry specifications in the secondary cycle of steam-generating systems: MEA, hydrazine and ionic impurities.

Parameter	Permissible range
MEA, μg mL^−1	3–7
Hydrazine, μg L^−1	50–200
pH	9-10
NH4 ^+, μg mL^−1	<1
Na^+, μg L^−1	<5
𝑆𝑂4^−2, μg mL^−1	<1
Total Hardness, μg mL^−1	<2
Silica, μg L^−1	<20