jonas_ekstrom
I would rather ask a naive question than guess.
12kreputation
30answers
1accepted
25questions
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53tags
71How many of the impurities in a research lot get named rather than counted?accepted · answered 30 May 2025 · lc-ms, purity, coa66Would you re-test oral semaglutide after three weeks at 40 °C, or accept the original certificate?answered 16 Nov 2025 · batch-testing, peptide-stability, coa63Would you re-test survodutide after four weeks at 37 °C, or accept the original certificate?answered 17 Nov 2024 · batch-testing, peptide-stability, coa54Would you re-test oral semaglutide after three weeks at 25 °C, or accept the original certificate?answered 27 Mar 2025 · batch-testing, peptide-stability, coa41Is 5 mg/mL a sensible working concentration for semaglutide, or should I go lower?answered 26 Aug 2024 · diluent-volume, reconstitution, dosing-math39What does a certificate with no method section imply?answered 27 May 2024 · coa, hplc, vendor-vetting36How would I detect racemisation in a retatrutide vial without sending it to VendorInvestigate?answered 25 May 2025 · vial-inspection, peptide-stability, harm-reduction33Does Homopeptide issue lot-specific documentation, or a batch certificate?answered 7 Nov 2025 · batch-testing, coa, vendor-vetting33What does a 98.8% purity with a list of related substances attached let me conclude?answered 30 Aug 2025 · purity, coa, hplc31How much of the gross mass of a 60 mg a GLP-1 receptor agonist vial is actually peptide?answered 12 Aug 2024 · content-assay, water-content, acetate-content30Why does a 1 mL luer-lock syringe read differently from the volume I thought I drew at 1 mg/mL?answered 8 Jan 2025 · insulin-syringe, dead-space, dosing-math27How much of the gross mass of a 15 mg ecnoglutide vial is actually peptide?answered 27 Jul 2026 · content-assay, water-content, acetate-content27Is 60 mg in 2.5 mL of bacteriostatic water a sensible presentation for liraglutide?answered 23 May 2026 · diluent-volume, reconstitution, dosing-math27What is the thermal exposure on a Nantong to Canada lane in summer?answered 9 Aug 2025 · cold-chain, international-shipping, storage26How do I reconcile 97.6% from Medutest with 98.4% from the supplier?answered 24 Jan 2025 · purity, batch-testing, coa21What does 98.2% purity on a C18 column actually tell me about an ecnoglutide vial?answered 27 Sept 2024 · hplc, purity, coa20How do I reconcile 96.4% from PeptideMeter with 95.2% from the supplier?answered 9 Sept 2024 · purity, batch-testing, coa18How comparable are oral semaglutide and semaglutide on the evidence available?answered 5 Oct 2024 · clinical-trials, semaglutide, tirzepatide18My ecnoglutide vial sat at minus 20 °C for twenty-one days — is testing worth it before use?answered 12 Dec 2024 · cold-chain, peptide-stability, batch-testing15How do I reconcile 97.9% from Medutest with 98.4% from the supplier?answered 16 Jul 2026 · purity, batch-testing, coa15What is the dead-space loss per draw with a 25G drawing needle at 20 mg/mL?answered 14 May 2026 · dead-space, insulin-syringe, dosing-math11How do I reconcile 96.8% from PeptideMeter with 96.4% from the supplier?answered 23 Dec 2025 · purity, batch-testing, coa10How do I write up a VendorInvestigate result on ecnoglutide so it is useful to others?answered 15 Mar 2026 · batch-testing, coa, harm-reduction9Would you re-test liraglutide after ten weeks at 30 °C, or accept the original certificate?answered 28 Jun 2025 · batch-testing, peptide-stability, coa8How do I interpret a sterility result with no sampling plan attached?answered 28 Jul 2026 · sterility, batch-testing, coa8What does SURMOUNT-3 tell me about early satiety at the 15 mg dose?answered 24 Jul 2025 · clinical-trials, gi-side-effects, titration7When is LC-MS worth its cost over HPLC plus a separate mass check?answered 30 Aug 2025 · lc-ms, hplc, mass-spec5Is creatinine a better monitoring choice than cystatin C on ecnoglutide?answered 21 Feb 2026 · bloodwork, kidney-function, lipids-1Does a phase-change pack hold a survodutide shipment for seven days in transit?answered 5 Aug 2024 · cold-chain, international-shipping, storage-2What is the real-world lead time from Wuhan to Australia in winter?answered 23 May 2024 · international-shipping, cold-chain, customs