PerkinElmer AVIO 200, Руководство по оборудованию

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Troubleshooting
279
Performance Problems: Troubleshooting Table
Table 6-1. Performance Problems: Troubleshooting Table
Problem Possible Cause(s) Corrective Action
RSD (Relative
Standard Deviation)
greater than 1%. The sample introduction
system may not be set up
correctly or may require
maintenance. Refer to Cleaning the Sample
Introduction System on page 171 .
Does the sample have a high
viscosity or high percentage of
dissolved solids? Try increasing the integration time.
Refer to the Syngistix Software Guide
on the Syngistix Document Pack CD
for details
.
For high dissolved solids, try the
GemCone spray nebulizer.
Add 0.05% surfactant to your samples,
standards, and blanks.
Try running other samples with normal
characteristics to determine if the
sample matrix is really the problem.
The standard and blank may need to be
matrix-matched. Or, internal
standardization may be required.
Look for carryover – check if
concentrations of replicates
increase from one to the next. Increase the Read Delay to flush the
sample introduction system completely.
Increase the rinse time if using an
autosampler. Prepare the rinse solution
in the same acid matrix used for the
standards, samples, and blank. Refer to
the Syngistix Software Guide on the
Syngistix Document Pack CD for
details
.
RF power and/or nebulizer
argon flow may require
adjustment. Adjust as necessary. Also, check that
you are using the recommended
settings for your instrument.