Unstable ISTD only in no-gas Mode

Question

The ISTD of my 7700 is fluctuating immense but only in no-gas mode, in He-mode is everything fine with the stability-graph. I have a recovery from about 20 to 180% with all 3 ISTD’s (Sc,In,Lu), they have the same deviation in the same way. It happens spontaneously with every kind of sample, even with a blank. I’d be happy if someone has any suggestions to solve this problem.

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edgarvs · Answer

Hi,

To know the source of the instability we need to analyses the data more deeply. Please contact your local Agilent product support. They could look into the zipped batch file/folder or set up a remote desktop session to help you with your questions.

Unstable ISTD only in no-gas Mode

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