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0
answers
7
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Rear seal wash leakage issue in thermo ultimate 3000 series

I have been observing the rare seal leakage while running thermo ultimate 3000 series. Whats the solution to it? How we can rectify it ? Why does it o...

HPLC
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Gagan BS asked 9h ago
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votes
0
answers
10
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Senior

Troubleshooting in amino acid column pico-tag...

HPLC
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Mohamed Nabil asked yesterday
0
votes
1
answers
68
views
Pressure

I have agilent 1260 infinity II instrument and i found that pressure is reaching 400 without installation of column , what is the problem ? and how to...

HPLC
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Ibrahim asked before yesterday
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votes
0
answers
30
views
Impurity Limit.

How to decide the known/unknown impurity limit in Related substance??...

HPLC
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Vasim asked before yesterday
3
votes
4
answers
175
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How injection volume effect on peak shape or results.?

How injection volume effect on peak shape or results.?...

HPLC
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Atif asked 4 d ago
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votes
1
answers
165
views
Qc analyst

Capacity factor calculation...

HPLC
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Tasnim Mahmoud asked 5 d ago
0
votes
2
answers
103
views
Peak area variability in DMSO analysis

Hello, I am running an impurity analysis method for DMSO with the following parameters: FID Temperature: 250 °C Injector Temperature: 250 °C Column...

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slucas asked 5 d ago
1
votes
2
answers
137
views
methylcobalamin analysis

Preparation of a sample of methylcobalamin in liquid form, in low concentration for analysis in HPLC. Any ideas?...

HPLC
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Amanda Zanatta asked 7 d ago
0
votes
1
answers
58
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SPLASH Lipidomix standard analyzed by HILIC method
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Does anyone try to run SPLASH Lipidomix Quantitative Mass Spec Internal standard by HILIC method on Agilent LC-QTOF? I do not see peaks on the chromat...

Mass Spectrometry (MS)
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Alina asked 7 d ago