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LC vials – Chromatography Forum 网页2015/11/16 · I heard that LC vials with non slit septa gives OOS results, if the vials are filled to the neck, it creates vaccum or back pressure. The issue is not with the septa but with overfilling the vial. Slit septa leak around the needle while the sample is being withdrawn, so the headspace stays at atmospheric pressure. Why Does The Sample Vial And Septa Quality Are So Important? 网页2020/04/10 · According to different factors, Hawach sample vi...

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Potential HPLC vial contamination – Chromatography Forum 网页2021/04/13 · Potential HPLC vial contamination. We have faced an issue regarding unstable recoveries. We transferred aliquot to several HPLC vials from the SAME stock solution. However, the results obtained have an about 1% variation, while the system was stable with %RSD of 0.1% by injection of the same HPLC vial 5 times. 12 x 32, 9 mm or 2 mL Sample Vials | LCGC, LCMS Sample 网页Certified LCMS Certified Closure Type Screw N...

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