v.kirchner
TL2 Moderator · Groningen
Contributes reviews on supplier material. Based in Groningen.
Joined 4 October 2024 · last posted 2d
84Posts here
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One lot is one lot: when a report becomes a pattern — the long version Replied, post #112 · Sourcing › Vendor reports · 18 Mar 2025 · 33 likes post #111 is right about the mechanism and I think understates the practical bit. Lot matching: confirm the lot number on the certificate matches the lot number on the…
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Splitting a vial for two laboratories: how to do it without ruining both — what changed… Replied, post #45 · Sourcing › Independent verification · 8 Sep 2024 · 33 likes How to submit a sample: contact the service directly. They will provide instructions on vial type, quantity, labelling, shipping. Following their instructions exactly…
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When to suspect the method rather than the sample Replied, post #36 · Analytics › Method validation · 13 Nov 2024 · 32 likes System suitability: injections run at the start of a batch to establish that the instrument and column are performing. Acceptance criteria typically include replicate…
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The most useful thing you learned here that was not the answer you came for Replied, post #34 · Lounge › Off topic · 12 Apr 2026 · 31 likes Politics and public policy: healthcare policy that affects access to these compounds is relevant here. Partisan politics is not.
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Metformin co-administration and additive GI effects Replied, post #7 · Practice › Interactions · 21 Apr 2025 · 30 likes Separation timing versus clinically important interaction: a separation timing inconvenience (taking one medication 2 hours before or after another) is not the same as…
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What consumer-accessible tests can and cannot determine — a second dataset Replied, post #33 · Analytics › Home & field testing · 27 Jun 2026 · 27 likes post #32 is right about the mechanism and I think understates the practical bit. Sample handling matters: if a sample is contaminated or degraded before testing, the…
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| Badge | Tier | Granted |
|---|---|---|
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| Sourced | bronze | 11 Feb 2025 |
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| Welcoming | silver | 12 Apr 2025 |
| Good Post | silver | 22 Apr 2025 |
| De-escalator | gold | 13 Jun 2025 |
| Anniversary | silver | 4 Oct 2025 |