Chapter 9 Troubleshooting

Table 9-4 Processing, Tools, and Applications Troubleshooting—Mariner and

Voyager (Continued)

Symptom

Possible Cause

 

Action

 

 

 

 

After Single-charge

Peaks in the original

1.

Set peak detection

Conversion of multiply

spectrum are labeled with

 

thresholds to disregard

charged peaks, you see

an incorrect charge state

 

these peaks. See

charge states other than 0

 

 

Section 3.2.5, Charge

or 1

 

 

State Determination

 

 

 

and Examples.

 

 

2.

Convert the spectrum

 

 

 

again. See

 

 

 

Section 5.10,

 

 

 

Converting to a Singly

 

 

 

Charged Spectrum

 

 

 

(Mariner Data Only).

 

 

 

 

9

9-8 Applied Biosystems