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Forums›COA & Analytical Testing › Page 7

COA & Analytical Testing

145 threads · 1.9K posts
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Hot Inter-lab variability in peptide testing — July 2024
PedsEndoPhilly · Feb 1, 2025
52Replies
2.4KViews
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PedsEndoPhilly
Feb 1, 2025
PR
Study COA red flag compilation — what worked for you?
PharmD_Rodriguez · Jan 21, 2025
28Replies
1.9KViews
PR
PharmD_Rodriguez
Jan 21, 2025
R
Guide What even IS a COA and why should I care — my results so far
RunnerRach · Jan 10, 2025
13Replies
1.7KViews
R
RunnerRach
Jan 10, 2025
MT
New My vendor COA looks sketchy - can someone take a look — anyone have experience?
mark_tokyo · Dec 29, 2024
9Replies
1.6KViews
MT
mark_tokyo
Dec 29, 2024
D
Hot Has anyone dealt with are all coas created equal? mine looks different from others i see?
Dr.ObesityLA · Dec 18, 2024
25Replies
2.2KViews
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Dr.ObesityLA
Dec 18, 2024
LS
New Paid for independent testing and results did not match vendor COA — looking for input
LarryQC_SD · Dec 6, 2024
16Replies
1.9KViews
LS
LarryQC_SD
Dec 6, 2024
TC
New Is 98% purity actually good or should I be worried — need advice
tyler_CSCS · Nov 24, 2024
12Replies
1.8KViews
TC
tyler_CSCS
Nov 24, 2024
LA
New HPLC vs UPLC for peptide purity — 6 month update
labquiet_amy · Nov 12, 2024
15Replies
1.9KViews
LA
labquiet_amy
Nov 12, 2024
JL
Hot Mass spectrometry for peptide identity verification — March 2026
JakeBK_lifts · Oct 31, 2024
37Replies
2.1KViews
JL
JakeBK_lifts
Oct 31, 2024
KT
Study Endotoxin testing methods — what worked for you?
kevin_tulsa · Oct 19, 2024
37Replies
2.0KViews
KT
kevin_tulsa
Oct 19, 2024
LR
Guide Red flags on COAs — my results so far
LindaRN_retired · Oct 7, 2024
10Replies
1.7KViews
LR
LindaRN_retired
Oct 7, 2024
LL
New USP reference standards for peptide verification — anyone have experience?
lisa_labSD · Sep 25, 2024
13Replies
2.0KViews
LL
lisa_labSD
Sep 25, 2024
K
Hot Has anyone dealt with janoshik vs in-house testing?
KristenIndy · Sep 12, 2024
40Replies
2.6KViews
K
KristenIndy
Sep 12, 2024
AC
New Batch-to-batch purity variation — looking for input
anders_CPH · Aug 30, 2024
19Replies
2.1KViews
AC
anders_CPH
Aug 30, 2024
MS
New Sterility testing per USP <71> — need advice
maya_sedona · Aug 18, 2024
15Replies
2.0KViews
MS
maya_sedona
Aug 18, 2024
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