Topic
Purity is not assay
Page 7 of 15 — The single most misunderstood distinction in peptide documentation: what fraction of the contents is the target compound, versus…
Messages — page 7 of 15
VialBotAssay note: QST lot D-0718 reported at 98.6% of label content.#retatrutide · 2025-09-26void_volumeis area percent the same thing as how many mg are in the vial#coa-reading · 2025-09-26bengaluru_bacif the lab reports area percent without stating the wavelength, the number is less useful than it looks#hplc-massspec · 2025-09-26VialBotAssay note: SSA lot C-4402 reported at 98.6% of label content.#bloodwork · 2025-09-27tesa_tessassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-09-27LC_MS_Lenaassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-09-28amsterdam_aliquotassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-09-29warsaw_vialpurity is not assay#coa-reading · 2025-10-02peak_splitpurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-10-02swab_dry_firstpurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-10-03acetate_ashpurity is not assay#coa-reading · 2025-10-03HPLC_Hankassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-10-03VialBotAssay note: BCH lot A-2418 reported at 99.2% of label content.#other-peptides · 2025-10-04bo_bloodworkassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-10-05VialBotAssay note: CPC lot C-4402 reported at 96.8% of label content.#mental-health · 2025-10-05otto_swirlspurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-10-06knees_firstslightly off topic but i was wrong about this for a year: area percent under-reports nothing, it just answers a different…#coa-reading · 2025-10-06VialBotAssay note: WXT lot C-4402 reported at 98.1% of label content.#wins · 2025-10-06hair_month_fourpurity is not assay#coa-reading · 2025-10-09area_percenti was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-10-09rezept_rolfassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem, i…#test-results · 2025-10-10HPLC_Hankis area percent the same thing as how many mg are in the vial#coa-reading · 2025-10-11VialBotAssay note: WWB lot B-0114 reported at 98.6% of label content.#mental-health · 2025-10-11bac_water_billif the lab reports area percent without stating the wavelength, the number is less useful than it looks, someone check my…#hplc-massspec · 2025-10-12VialBotAssay note: CPC lot SG-1177 reported at 98.6% of label content.#eu · 2025-10-12cross_border_camif you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-10-13blank_runone way your 8.9 happens with nobody lying to you#coa-reading · 2025-10-13blank_runcorrect and that is a separate point people conflate constantly. HPLC purity says nothing about bacterial endotoxin. endotoxin…#coa-reading · 2025-10-13VialBotAssay note: SWB lot A-2601 reported at 98.6% of label content.#side-effects · 2025-10-14acetate_ashis area percent the same thing as how many mg are in the vial#coa-reading · 2025-10-14LC_MS_Lenapurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-10-14ms_ms_miraif the lab reports area percent without stating the wavelength, the number is less useful than it looks, i think#hplc-massspec · 2025-10-15VialBotAssay note: GL Biochem lot B-0329 reported at 99% of label content.#retatrutide · 2025-10-16retention_timepurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-10-17power_cut_piais area percent the same thing as how many mg are in the vial if you only read one line on a certificate, read the lot number.…#coa-reading · 2025-10-19assay_not_purityassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-10-19oli_oralsif you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-10-20underfill_umaupdate on the earlier thing if you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-10-23peak_splitif the lab reports area percent without stating the wavelength, the number is less useful than it looks#hplc-massspec · 2025-10-23VialBotAssay note: MKM lot KP-0925 reported at 99.4% of label content.#cagrilintide · 2025-10-24unsolicited_dmif you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-10-25void_volumewhy would a vial be 99.2 pure and still assay under label#coa-reading · 2025-10-25peak_splitpurity is not assay#coa-reading · 2025-10-25VialBotAssay note: ERP lot B-0329 reported at 99.2% of label content.#scam-watch · 2025-10-25VialBotAssay note: MKM lot SG-1177 reported at 99.4% of label content.#cagrilintide · 2025-10-28endotoxin_edpurity is not assay#coa-reading · 2025-10-28endotoxin_edok so why would a vial be 98.1 pure and still assay under label#coa-reading · 2025-10-28peak_splitis area percent the same thing as how many mg are in the vial#coa-reading · 2025-10-28VialBotAssay note: KP lot KP-0925 reported at 98.6% of label content.#test-results · 2025-10-29area_percentassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem, for…#test-results · 2025-10-29salt_bridgeif the lab reports area percent without stating the wavelength, the number is less useful than it looks#hplc-massspec · 2025-10-30lot_number_loufor the archive assay under label with good purity means you got less of the right thing. that is a fill problem, not a…#test-results · 2025-10-30acetate_ashif you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-11-01turnaround_tampurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-11-01assay_not_purityi was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-11-01monoisotopicdo you trust an area percent from a shallow gradient#hplc-massspec · 2025-11-01sharps_bin_sidassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-11-01VialBotAssay note: GL Biochem lot E-2205 reported at 99% of label content.#archive-notes · 2025-11-03two_four_ceilingassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem, ask…#test-results · 2025-11-04queue_positionassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-11-05