Re: Agilent filaments

Dear Gun
we can repair your failing filaments. Probably failing filaments are
manufactured with too small force when spot welded. Rhenium tends to
sack when heated. Tungsten does this as well, but special doping
reduces this problem.

Kind regards, Volker

 
Gun Blomkvist <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>...
} We have been using an Agilent 5973 instrument for about two years,
} mainly for analysis of organohalogens with NCI/methane. Earlier this
} year we began experiencing problems with the filaments; shortly after
} installation of a new filament, sensitivity started to decrease
} rapidly and we found that the filament was bent. As this has been
} repeated several times, it seems that Agilent's production methods
} have changed somehow.
} Two questions:
} 1)    Has anybody else had the same problem?
} 2)    We have found that older batches of filaments, part no.
} G.1099-80053, batch no beginning with 0, work well. Does anybody have
} one or more of these and is willing to part with them?
} 
} Regards,
} Gun