公开(公告)号：JPH0783908A

公开(公告)日：1995-03-31

申请号：JP25013293

申请日：1993-09-10

Applicant: TOA ELECTRONICS

Inventor： YOTSUYANAGI TAKAO ,  HOSHINO HITOSHI ,  NOMURA TAKASHI

IPC: G01N30/06 ,  G01N30/74 ,  G01N30/88

Abstract: PURPOSE:To relatively simply determine a small amount of beryllium with an extremely high sensitivity by setting sample ion as a non-dissociation com plex by a specific complex reagent and then' isolating and analyzing the sample liquid containing the complex using liquid chromatography. CONSTITUTION:1-(2,4-dihydroxy-phenylazo)-8-hydroxy-3,6 disulfonaphthalene, or 1-(2-hydroxy-4-diethylamlno 1-phenylazo)-8-hydroxy-3,6-disulfonaphthalene is used as a complex reagent. These two types of complex reagents creates two 6-member rings incorporating beryllium ion and form a complex. The sample liquid containing the complex is injected into the column, the complex is isolated and analyzed by liquid chromatography, and then beryllium concentration is determined. It is desirable to used kinetics discrimination(KD) - HPLC as the HPLC(high performance liquid chromatography) most suited for ultra- high-sensitivity detection of beryllium and beryllium can be determined with the ultra high sensitivity of PPt level.