Jaytee Biosciences Ltd http://www.jaytee.com HPLC, GC and MS Consumables Wed, 07 Jun 2017 15:18:42 +0000 en-US hourly 1 Prep 5000 http://www.jaytee.com/prep-5000/ http://www.jaytee.com/prep-5000/#comments Tue, 06 Jun 2017 07:36:11 +0000 http://www.jaytee.com/?page_id=13888 Coming Soon… Q. What does any analytical laboratory need? A. Accurately produced, GMP compliant mobile phase that underpins the integrity of analysis and your products. How to achieve it? The Prep 5000 solution preparation system from kromega will be the first instrument that meets that requirement. Accomodates 10 solvents for mobile phase production in a closed-loop…

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Setonic Syringes http://www.jaytee.com/setonic-syringes/ http://www.jaytee.com/setonic-syringes/#comments Mon, 05 Jun 2017 13:54:59 +0000 http://www.jaytee.com/?page_id=13883 The post Setonic Syringes appeared first on Jaytee Biosciences Ltd.

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GC-MS PM Kits http://www.jaytee.com/kromega/spares-consumables/gc-ms-pm-kits/ http://www.jaytee.com/kromega/spares-consumables/gc-ms-pm-kits/#comments Wed, 24 May 2017 15:37:43 +0000 http://www.jaytee.com/?page_id=13861 kromega GC-MS PM Kits Preventative / Planned Maintenance (PM) are procedures recommended by the OEM in order to keep your instrument operational and functioning within advised resolution, calibration and intensity specifications. Our experts at Jaytee have developed a range of OEM equivalent PM Kits in order to facilitate this, offering both quality and affordability. Included…

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Introduction to Fault Diagnosis in HPLC Systems http://www.jaytee.com/introduction-fault-diagnosis-hplc-systems/ http://www.jaytee.com/introduction-fault-diagnosis-hplc-systems/#comments Thu, 11 May 2017 11:30:20 +0000 http://www.jaytee.com/?page_id=13683 User, Methodology and Instrument Failure Always remember – a fault in either the user or methodology could be the root cause of an instrument failure! Always ask yourself 3 questions: What has the user done since last use (human error)? Why did you do that (methodology)? How has the fault manifested (instrument failure)? Step 1…

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Fault Diagnosis in HPLC Systems http://www.jaytee.com/fault-diagnosis-hplc-systems/ http://www.jaytee.com/fault-diagnosis-hplc-systems/#comments Thu, 11 May 2017 11:25:01 +0000 http://www.jaytee.com/?page_id=13681 Welcome to the home section of Jaytee’s engineer’s guide to HPLC fault diagnosis.

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Process for Troubleshooting HPLC Issues http://www.jaytee.com/process-troubleshooting-hplc-issues/ http://www.jaytee.com/process-troubleshooting-hplc-issues/#comments Thu, 11 May 2017 10:48:42 +0000 http://www.jaytee.com/?page_id=13669 Process diagram for troubleshooting HPLC issues – click image to download printable pdf.

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Autosampler – HPLC fault diagnosis http://www.jaytee.com/hplc-autosampler-fault-diagnosis/ http://www.jaytee.com/hplc-autosampler-fault-diagnosis/#comments Tue, 09 May 2017 08:28:07 +0000 http://www.jaytee.com/?page_id=13665 Autosampler Fault Poor area reproducibility is caused by varying amounts of sample being injected. Possible causes of failure: Worn syringe Sample carryover (needle seat) Metering device Faulty / worn switching valve Leaks inside the autosampler (e.g. Alliance autosampler leaks are not always immediately apparent) Seal leaks – some are more visible than others Leaks on…

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Look for Differences – HPLC Fault Diagnosis http://www.jaytee.com/look-differences-hplc-fault-diagnosis/ http://www.jaytee.com/look-differences-hplc-fault-diagnosis/#comments Tue, 09 May 2017 08:11:31 +0000 http://www.jaytee.com/?page_id=13663 Look for Differences Between Systems We mean: Is it the same make? Is it the same model (exactly)? Has it got the same configuration? For example: If one has a quaternary and one has a binary pump, the gradient profile may be different as they use low and high pressure mixing respectively. DAD vs VWD…

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Run a Known Method – HPLC fault diagnosis http://www.jaytee.com/run-known-method-hplc-fault-diagnosis/ http://www.jaytee.com/run-known-method-hplc-fault-diagnosis/#comments Tue, 09 May 2017 08:09:17 +0000 http://www.jaytee.com/?page_id=13661 Run a Known Method on the System As you have now ruled out human error the next stage is to separate the methodology from the instrumentation. The best way to do this is to run a simple known method to prove the system is operating correctly. Use a 1 or 2 component standard. Run isocratic,…

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High Back Pressure – HPLC fault diagnosis http://www.jaytee.com/high-back-pressure-hplc-fault-diagnosis/ http://www.jaytee.com/high-back-pressure-hplc-fault-diagnosis/#comments Tue, 09 May 2017 08:08:03 +0000 http://www.jaytee.com/?page_id=13659 High Back Pressure Issues High back pressure is indicative of a blockage in the system. Check flow, tubing and column. Start at the detector and work towards the pump to identify the location of the blockage. PEEK fitting can fail if tubing is necked, kinked. Remove tubing from column outlet – is there flow through…

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