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Forums›COA & Analytical Testing › Page 7

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COA & Analytical Testing

145 threads · 1.9K posts
P
Hot Inter-lab variability in peptide testing — July 2024
PedsEndoPhilly · Nov 6, 2024
52Replies
2.4KViews
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PedsEndoPhilly
Nov 6, 2024
PR
Study COA red flag compilation — what worked for you?
PharmD_Rodriguez · Oct 26, 2024
28Replies
1.9KViews
PR
PharmD_Rodriguez
Oct 26, 2024
R
Guide What even IS a COA and why should I care — my results so far
RunnerRach · Oct 15, 2024
13Replies
1.7KViews
R
RunnerRach
Oct 15, 2024
MT
New My vendor COA looks sketchy - can someone take a look — anyone have experience?
mark_tokyo · Oct 3, 2024
9Replies
1.6KViews
MT
mark_tokyo
Oct 3, 2024
D
Hot Has anyone dealt with are all coas created equal? mine looks different from others i see?
Dr.ObesityLA · Sep 22, 2024
25Replies
2.2KViews
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Dr.ObesityLA
Sep 22, 2024
LS
New Paid for independent testing and results did not match vendor COA — looking for input
LarryQC_SD · Sep 10, 2024
16Replies
1.9KViews
LS
LarryQC_SD
Sep 10, 2024
TC
New Is 98% purity actually good or should I be worried — need advice
tyler_CSCS · Aug 29, 2024
12Replies
1.8KViews
TC
tyler_CSCS
Aug 29, 2024
LA
New HPLC vs UPLC for peptide purity — 6 month update
labquiet_amy · Aug 17, 2024
15Replies
1.9KViews
LA
labquiet_amy
Aug 17, 2024

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JL
Hot Mass spectrometry for peptide identity verification — March 2026
JakeBK_lifts · Aug 5, 2024
37Replies
2.1KViews
JL
JakeBK_lifts
Aug 5, 2024
KT
Study Endotoxin testing methods — what worked for you?
kevin_tulsa · Jul 24, 2024
37Replies
2.0KViews
KT
kevin_tulsa
Jul 24, 2024
LR
Guide Red flags on COAs — my results so far
LindaRN_retired · Jul 12, 2024
10Replies
1.7KViews
LR
LindaRN_retired
Jul 12, 2024
LL
New USP reference standards for peptide verification — anyone have experience?
lisa_labSD · Jun 30, 2024
13Replies
2.0KViews
LL
lisa_labSD
Jun 30, 2024
K
Hot Has anyone dealt with janoshik vs in-house testing?
KristenIndy · Jun 17, 2024
40Replies
2.6KViews
K
KristenIndy
Jun 17, 2024
AC
New Batch-to-batch purity variation — looking for input
anders_CPH · Jun 4, 2024
19Replies
2.1KViews
AC
anders_CPH
Jun 4, 2024
MS
New Sterility testing per USP <71> — need advice
maya_sedona · May 23, 2024
15Replies
2.0KViews
MS
maya_sedona
May 23, 2024
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