Topic
Counterion content
Page 9 of 10 — TFA versus acetate salt, what it does to the mass balance, and why an honest 10mg vial can weigh 11.4mg of powder.
Messages — page 9 of 10
swirl_not_shakewhat does net peptide content mean next to gross mass#coa-reading · 2026-04-21swirl_not_shaketfa or acetate, how do i tell from the paperwork#coa-reading · 2026-04-21quiet_head_qigross powder mass is not net peptide. water and counterion are in that number#reconstitution · 2026-04-23sarcopenia_samnet peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial#coa-reading · 2026-04-24zed_zeroes_inwhat does net peptide content mean next to gross mass#coa-reading · 2026-04-24zed_zeroes_infor the archive tfa or acetate, how do i tell from the paperwork#coa-reading · 2026-04-24per_mg_petegross powder mass is not net peptide. water and counterion are in that number#reconstitution · 2026-04-25two_three_liftstfa counterion runs higher by mass than acetate. if the certificate does not say, you cannot do the mass balance#coa-reading · 2026-04-25endotoxin_ednet peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial#coa-reading · 2026-04-26noct.titratetfa counterion runs higher by mass than acetate. if the certificate does not say, you cannot do the mass balance#coa-reading · 2026-04-29two_three_liftstfa or acetate, how do i tell from the paperwork gross mass on a jewellery scale plus the water content is enough to catch…#coa-reading · 2026-04-30salt_bridgetfa counterion runs higher by mass than acetate. if the certificate does not say, you cannot do the mass balance, take that…#coa-reading · 2026-04-30plus_sixteenthats the counterion#coa-reading · 2026-05-01plus_sixteenslightly off topic but tfa or acetate, how do i tell from the paperwork#coa-reading · 2026-05-01LC_MS_Lenanet peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial#coa-reading · 2026-05-03ring_size_downtfa or acetate, how do i tell from the paperwork#coa-reading · 2026-05-03evidence_or_notfor the archive tfa counterion runs higher by mass than acetate. if the certificate does not say, you cannot do the mass balance#coa-reading · 2026-05-04gradient_gregwhat does net peptide content mean next to gross mass#coa-reading · 2026-05-04cold_chain_cmdrgross powder mass is not net peptide. water and counterion are in that number#reconstitution · 2026-05-05nausea_windowtfa counterion runs higher by mass than acetate. if the certificate does not say, you cannot do the mass balance#coa-reading · 2026-05-08first_month_fithats the counterion#coa-reading · 2026-05-09tga_noticetfa or acetate, how do i tell from the paperwork#coa-reading · 2026-05-09yara_yieldsquick one net peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial#coa-reading · 2026-05-10yara_yieldswhat does net peptide content mean next to gross mass#coa-reading · 2026-05-10tablet_tamnet peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial#coa-reading · 2026-05-11rotterdam_recontfa counterion runs higher by mass than acetate. if the certificate does not say, you cannot do the mass balance#coa-reading · 2026-05-11peak_splitthats the counterion#coa-reading · 2026-05-11impersonator_ipwhile im here tfa or acetate, how do i tell from the paperwork#coa-reading · 2026-05-11mhra_unlicensednet peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial#coa-reading · 2026-05-12mhra_unlicensedthats the counterion#coa-reading · 2026-05-12nim_newtfa or acetate, how do i tell from the paperwork#coa-reading · 2026-05-13endotoxin_ednet peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial#coa-reading · 2026-05-13nim_newthats the counterion#coa-reading · 2026-05-13new_here_nattfa or acetate, how do i tell from the paperwork#coa-reading · 2026-05-14lisbon_lottfa counterion runs higher by mass than acetate. if the certificate does not say, you cannot do the mass balance mixed fonts…#coa-reading · 2026-05-15HPLC_Hanksorry to jump in what does net peptide content mean next to gross mass#coa-reading · 2026-05-15LC_MS_Lenathats the counterion#coa-reading · 2026-05-15otto_swirlswhat does net peptide content mean next to gross mass#coa-reading · 2026-05-17lisbon_lotnet peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial#coa-reading · 2026-05-17lisbon_lotthats the counterion#coa-reading · 2026-05-17otto_swirlstfa or acetate, how do i tell from the paperwork#coa-reading · 2026-05-17bac_water_billgross powder mass is not net peptide. water and counterion are in that number, anyway#reconstitution · 2026-05-18comment_fatigueok so net peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial water…#coa-reading · 2026-05-18u100_patgross powder mass is not net peptide. water and counterion are in that number#reconstitution · 2026-05-19no_escrow_nateunrelated but net peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial#coa-reading · 2026-05-19blank_runnet peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial#coa-reading · 2026-05-20evidence_or_nottfa or acetate, how do i tell from the paperwork#coa-reading · 2026-05-20holly_holdsok so tfa counterion runs higher by mass than acetate. if the certificate does not say, you cannot do the mass balance#coa-reading · 2026-05-20hydrate_hanathats the counterion#coa-reading · 2026-05-20hydrate_hanawhat does net peptide content mean next to gross mass#coa-reading · 2026-05-20HPLC_Hankessentially. acetate has almost no absorbance up at 214 to speak of. you will not see your counterion on a UV trace and that…#hplc-massspec · 2026-05-20batch_banditthe counterion thing is the bridge between this channel and #coa-reading, people bounce between the two arguments without…#hplc-massspec · 2026-05-20blank_runchange the selectivity and see if the peak splits. shallower gradient, or a different stationary phase, or swap TFA for formic…#hplc-massspec · 2026-05-20dark_for_ten_daysfollow up gross powder mass is not net peptide. water and counterion are in that number#reconstitution · 2026-05-21ms_ms_mirawhat does net peptide content mean next to gross mass#coa-reading · 2026-05-21assay_not_puritynet peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial i was wrong…#coa-reading · 2026-05-21salt_bridgenet peptide is gross mass minus water minus counterion. that is why 11.4mg of powder can be a correct 10mg vial, we shall see#coa-reading · 2026-05-24salt_bridgetfa or acetate, how do i tell from the paperwork#coa-reading · 2026-05-25deamidationgross powder mass is not net peptide. water and counterion are in that number swirl it. do not shake it. the foam is denatured…#reconstitution · 2026-05-26LC_MS_Lenatfa counterion runs higher by mass than acetate. if the certificate does not say, you cannot do the mass balance#coa-reading · 2026-05-26