Determination of soluble bromine in an extra-high-pressure mercury discharge lamp by sodium hydroxide decomposition-suppressed ion chromatography.
We have established a simple method for assaying the quantity of soluble bromine in the discharge tubes of an extra-high-pressure mercury discharge lamp. Each discharge tube is destroyed in 5 ml of 10 mM sodium hydroxide, and the recovered sodium hydroxide solution is analyzed by suppressed-ion chromatography using gradient elution. We have clarified that this method can assay less than 1 microg of soluble bromine in a discharge tube.
Mitsumata
Hiroshi
H
Lighting Company, Matsushita Electric Industrial Co., Ltd., 1-1, Saiwai-cho, Takatsuki 569-1193, Japan.
Mori
Toshio
T
Maeda
Tatsuo
T
Kita
Yoshiyuki
Y
Kohatsu
Osamu
O