Chinese
Chromatograhy Vials
We have our own factory which covers about 13,000 square meters,and we have the professional engineer and specific workers.
ABOUT Aijiren
Zhejiang Aijiren Technology, Inc. is a global supplier of life-science, chemistry, laboratory consumables, etc. Our major products are high performance liquid chromatography & gas chromatography consumables such as Chromatography Autosampler Vials with closures, inserts, crimper and syringe filters, etc; Water analysis consumables such as COD test tube. Zhejiang Aijiren Technology,Inc. have been supplying to more than 70 countries, covers more than 2000 customers all over the world. 120 workers, 100,000 class cleaning room, ISO, GMP & Bureau Veritas certificated, this is how we keep high quality and competitive prices for global valued customers.
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CASE
Over 15 years, we have earned an excellent reputation and public praise all over the world.
19
Oct
Why vial failures dominate routine HPLC and GC troubleshooting
I have watched a lot of autosampler trays over the years, and the failures that hurt are almost never dramatic. They are quiet: a slowly rising baseline, a peak that tails a little more each week, a run of samples where the internal standard recovery drifts from 98% down to 87% and nobody notices until the batch fails review. In almost every case I traced back over a decade of investigations, the root cause was a consumable decision made months earlier: the wrong septa, a cap torqued by han...
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19
Oct
Start with the instrument, not the catalog
I have watched a lab lose three weeks of work because a buyer saved four cents per vial. The autosampler needle punched through a thin silicone septum, a fragment dropped into the sample, and the resulting ghost peaks sent the method development team chasing a contamination problem that did not exist. The vial was the contamination. That experience shaped how I spec vials now: start from the instrument, work backward through the septum and cap, and never treat the glass as a commodity. This...
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18
Oct
Why vials fail more often than the instrument does
I still remember the Monday morning when a client called because their EPA 8270 semivolatile run had failed QC three times in a row. The instrument was fine. The column was three weeks old. The problem turned out to be a batch of 2 mL vials with crimp seals that had been crimped too hard, splitting the PTFE-faced silicone septa and letting the autosampler needle core a plug of silicone straight into the injection port. That single failure cost them two days of instrument time and a re-extra...
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18
Oct
Start with the autosampler, not the vial catalog
I have watched a lab lose three weeks of data because somebody bought 9 mm screw-thread vials to run on an autosampler set up for 11 mm crimp caps. The vials fit the tray. They did not fit the gripper. The runs aborted at injection 40 of 96, and nobody noticed the partial sequence until the batch report came back short. That is the kind of mistake this guide is meant to prevent. Vial selection looks trivial until it costs you a sequence, a column, or a regulatory finding. Below is how I spe...
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