Topic
Purity is not assay
Page 5 of 15 — The single most misunderstood distinction in peptide documentation: what fraction of the contents is the target compound, versus…
Messages — page 5 of 15
apnoea_down_twoi was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-07-03fake_trackingassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-07-03nine_nine_oneif the lab reports area percent without stating the wavelength, the number is less useful than it looks, ask me again in a month#hplc-massspec · 2025-07-05VialBotAssay note: HJ lot B-0329 reported at 98.6% of label content.#storage-coldchain · 2025-07-06truncation_truwhy would a vial be 99.2 pure and still assay under label#coa-reading · 2025-07-06hk_hplcfollow up do you trust an area percent from a shallow gradient#hplc-massspec · 2025-07-08ms_ms_miraassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-07-08blank_runi was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-07-09split_dose_sampurity is not assay#coa-reading · 2025-07-10night_pinpurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-07-10seven_five_sweetpurity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-07-11peak_spliti was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-07-11point_two_fivefollow up purity is what fraction of the contents is the target. assay is how many mg are actually there. different questions#coa-reading · 2025-07-12LC_MS_Lenaif you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-07-12VialBotAssay note: WXT lot F-1330 reported at 96.8% of label content.#bloodwork · 2025-07-13deamidationif the lab reports area percent without stating the wavelength, the number is less useful than it looks#hplc-massspec · 2025-07-13a1c_lagassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem,…#test-results · 2025-07-13VialBotAssay note: WWB lot SG-1177 reported at 97.4% of label content.#oral-glp1 · 2025-07-14hk_hplcassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem,…#test-results · 2025-07-14VialBotAssay note: CPC lot B-0329 reported at 99% of label content.#dosing-titration · 2025-07-20VialBotAssay note: FGP lot D-0718 reported at 99.2% of label content.#vendor-verification · 2025-07-20travel_cooleri was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-07-21VialBotAssay note: KP lot SG-1177 reported at 99.2% of label content.#tirzepatide · 2025-07-22VialBotAssay note: MKM lot E-2205 reported at 98.6% of label content.#semaglutide · 2025-07-24VialBotAssay note: QSC lot F-1330 reported at 99.2% of label content.#bloodwork · 2025-07-24lower_frequencyif you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-07-24VialBotAssay note: SSA lot B-0329 reported at 99% of label content.#scam-watch · 2025-07-24pinch_not_stretchif the lab reports area percent without stating the wavelength, the number is less useful than it looks#hplc-massspec · 2025-07-25VialBotAssay note: JEEP lot B-0114 reported at 96.8% of label content.#hplc-massspec · 2025-07-25monoisotopicfollow up do you trust an area percent from a shallow gradient#hplc-massspec · 2025-07-25VialBotAssay note: HJ lot A-2418 reported at 99.2% of label content.#archive-notes · 2025-07-26meniscus_meldo you trust an area percent from a shallow gradient#hplc-massspec · 2025-07-27surpass_tworight so assay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis…#test-results · 2025-07-27VialBotAssay note: SSA lot H-2814 reported at 98.6% of label content.#injection-technique · 2025-07-28vial_ledgerdo you trust an area percent from a shallow gradient#hplc-massspec · 2025-07-28VialBotAssay note: SWB lot B-0114 reported at 98.1% of label content.#mental-health · 2025-07-28void_volumei was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-07-29VialBotAssay note: QSC lot F-1330 reported at 97.4% of label content.#food-and-training · 2025-07-29lean_mass_lexi was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-07-31bea_reconstitutesif you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-07-31bea_reconstituteswhy would a vial be 99 pure and still assay under label#coa-reading · 2025-07-31VialBotAssay note: CPC lot H-2814 reported at 98.6% of label content.#dosing-titration · 2025-08-01VialBotAssay note: WXT lot C-4402 reported at 96.8% of label content.#vendor-verification · 2025-08-01vienna_vialdo you trust an area percent from a shallow gradient#hplc-massspec · 2025-08-02VialBotAssay note: CPC lot H-2814 reported at 99% of label content.#mental-health · 2025-08-02VialBotAssay note: QYB lot A-2418 reported at 96.8% of label content.#scam-watch · 2025-08-03VialBotAssay note: TFC lot A-2418 reported at 98.1% of label content.#tirzepatide · 2025-08-04HPLC_Hanki was wrong about this for a year: area percent under-reports nothing, it just answers a different question than assay does#coa-reading · 2025-08-05blank_runis area percent the same thing as how many mg are in the vial#coa-reading · 2025-08-06VialBotAssay note: QSC lot KP-0925 reported at 98.6% of label content.#hplc-massspec · 2025-08-07VialBotAssay note: WXT lot SG-1177 reported at 98.6% of label content.#food-and-training · 2025-08-07vik_verifiesassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem a…#test-results · 2025-08-08drawup_deeassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem#test-results · 2025-08-11HPLC_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 · 2025-08-14eight_mmslightly off topic but assay under label with good purity means you got less of the right thing. that is a fill problem, not a…#test-results · 2025-08-15blank_runassay under label with good purity means you got less of the right thing. that is a fill problem, not a synthesis problem,…#test-results · 2025-08-16deamidationis area percent the same thing as how many mg are in the vial#coa-reading · 2025-08-17salt_bridgeif you only read one line on a certificate, read the lot number. if you read two, read the assay#coa-reading · 2025-08-17coa_or_copewhy would a vial be 98.1 pure and still assay under label#coa-reading · 2025-08-17monoisotopicif the lab reports area percent without stating the wavelength, the number is less useful than it looks#hplc-massspec · 2025-08-17