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1.发明授权Process and apparatus for the automatic determination and/or control of the hydroxide:nitrite ratio in nitrite solutions 失效自动测定和/或控制氢氧化物的方法和装置：硝酸盐溶液中的硝酸盐比例
公开(公告)号：US3421855A
公开(公告)日：1969-01-14
申请号：US3421855D
申请日：1964-12-01
Applicant: STAMICARBON
Inventor： KATEMAN GERRIT , MORGEN KURT VON , WIJENBERG JOANNES B G
CPC classification number: G01N31/16 , C01B21/1427 , Y10T436/173076 , Y10T436/203332
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