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Achieve Optimal Seals When Crimping Caps on Vials - How To
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Analyze phosphorylated compounds with the Cogent Diamond Hydride column - Tips & Suggestions
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Are sparging stones good for ozonating water - FAQ
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Assembly Instructions for Guard Column Holder - Tech Information
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Avoid microbial growth in HPLC mobile phases - How to
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Buffer Hints in Capillary Electrophoresis - How To
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Calculate assay of lisinopril dihydrate based on the anhydrous form - How to
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Calculate ligand density of a bonded phase of an HPLC column - How To
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Calculating Theoretical Plates N at Half Height - How To
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Can you Make PTFE Syringe Filters Hydrophilic - How to
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Capillary Conditioning in Capillary Electrophoresis CE - How To
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Capillary Storage in Capillary Electrophoresis CE - How To
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Change the type of methods used from DAD to VWD in the Qualification software - How To
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Choose an appropriate guard column when using a Cogent TYPE-C HPLC column - How To
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Choosing the correct HPLC column coupler - How To
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Cogent silica hydride HPLC columns by order of hydrophobicity - Tips & Suggestions
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Condition Controlled and Zero Flow Capillaries - How to
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Convert HPLC columns between Reversed Phase and Normal Phase - How to
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Converting Cogent TYPE-C columns to normal phase after use in reversed phase - How To
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Cut PEEK tubing using a Clean Cut90 cutter - How to
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Cut stainless steel tubing for HPLC properly - How to
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Determine dwell volume of gradient HPLC systems - How To
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Determine limits of detection LOD and limits of quantification LOQ - How To
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Determine pore volume of an HPLC column using HPLC injections - How To
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Determine the asymmetry factor in HPLC at 10 percent peak height - How To
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Determining HPLC method accuracy - How To
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Determining the precision of an HPLC method - Tips & Suggestions
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Determining wavelength accuracy below 230nm for HPLC instruments - How To
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Eliminating shoulder peaks in an HPLC method using Cogent RP C18 columns - Tips & Suggestions
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Establishing HPLC method linearity - Tips & Suggestions
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Extra Column Volume calculation using the Chemical Solutions Qualification Kit software - How To
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Factors that affect sensitivity in HPLC - Tech Information
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Guidelines for packing in the PEEK column hardware - Tips & Suggestions
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Help Defining Custom Plate Measurements for the U-2D Micro-Sample Management System in the Waters Acquity Console Software - How to
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High pressure PEEK fittings pressure limits - FAQ
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How can I fix split peaks with high back pressure in HPLC analyses - FAQ
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How can I improve accuracy and precision when separating polar compounds by HPLC using Aqueous Normal Phase ANP - FAQ
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How Can I Minimize Bubble Formation in Limited Volume Vials When Filling - FAQ
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How can I separate capsaicinoids in hot sauce by HPLC - Tips & Suggestions
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How can I separate methacrylic acid and dodecyl benzene sulfonic acid - FAQ
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How Can I Use the MICROSOLV Window Maker to Burn a Larger Window - FAQ
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How can sample concentration have an effect on peak shape in HPLC - FAQ
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How do I connect a guard column to an analytical column - FAQ
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How do I get additional technical assistance - FAQ
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How do I keep my solvents degassed on their way to the HPLC pump - FAQ
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How do I know if a crimped cap on a vial has a proper seal - FAQ
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How Do I Remove a Blockage in my CE Capillary - How To
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How do I Store the Simplus Brand Bare Fised Silica CE Capillaries - How To
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How is pressure inside tubing calculated for HPLC - FAQ
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How to back flush and wash an HPLC column for reuse - Tips & Suggestions
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How to calculate key data in HPLC - INTERNAL ONLY
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How to calibrate UV-vis and HPLC detectors with NIST traceable solutions below 230nm - Tips & Suggestions
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How to Change Ferrules on Di-Ad HPLC Connectors - How To
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How to choose a suitable mobile phase additive for negative ionization mode LCMS - Tips & Suggestions
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How to clean sparging stones and In line SS filters - Tips & Suggestions
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How to condition Cogent RP or HPS or Axis HPLC columns for storage - Tips & Suggestions
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How to Connect HPLC Columns Using Di-Ad Connectors - How To
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How to determine concentration of an impurity in HPLC with the relative response factor RRF - How to
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How to fix a saw tooth pattern in the UV baseline - Tips & Suggestions
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How to Get Improved Retention and Peak Shape for Glutamine Glutamic Acid and Aspartic Acid - Tips & Suggestions
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How to handle sparging stones to avoid contamination of mobile phases - Tips & Suggestions
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How to improve LOD or detection limits in HPLC - Tips & Suggestions
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How to increase HPLC UV Detector Response - Tips & Suggestions
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How to keep HPLC columns free of adsorbed contaminants - How To
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How to Minimize HPLC Column Blockage from Most Common Causes - Tips & Suggestions
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How to prepare 10mM ammonium acetate buffer 90:10 in acetonitrile for HPLC and LCMS - Tips & Suggestions
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How to prepare 16mM ammonium acetate buffer 90:10 in acetonitrile for HPLC - Tips & Suggestions
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How to repair a blocked frit in an HPLC column - Tips & Suggestions
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How to Tighten Screw Caps Properly - Tips & Suggestions
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Identify used U-2D inserts for multiple projects or in small sample sets - Tips & Suggestions
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If an analyte is only soluble at basic pH can you use a basic mobile phase for my method - FAQ
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Improve or obtain flat baselines in HPLC methods with a gradient - Tips & Suggestions
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Improving peak shapes in an HPLC method in Aqueous Normal Phase ANP - Tips & Suggestions
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Increasing selectivity and resolution for a xylose and ribose method - Tips & Suggestions
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Integrate a peak with a shoulder - How to
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Interpreting mass spectral data - Primer
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Know when to discard an outlier data point in HPLC by using the Q Test - How To
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Make an Injection Water Plug in Capillary Electrophoresis - How To
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Measure signal to noise ratio in an HPLC chromatogram - How to
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Measuring Pump Flow Accuracy in HPLC - How to
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Method development tip for maleic hydrazide - Tips & Suggestions
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Mobile Phase recommendation Cogent Diamond Hydride columns for use with serum samples in Aqueous Normal Phase LCMS - Tips & Suggestions
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Obtain a flat baseline in a gradient method without using blank subtraction - How to
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PEEK slurry reservoir 2.1mm ID column packing hardware information - FAQ
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Phospholipid Separations by HPLC - Tips & Suggestions
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Pre mix your diluent and mobile phase in sample preparation for HPLC - Tips & Suggestions
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Properly cut a fused silica capillary for CE - How To
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Purge metals from HPLC system using EDTA - How To
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Quaternary amines analysis by LCM and finding the right ion - How To
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Recover an HPLC column that has had ammonium acetate precipitated in it - How To
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Remove a ferrule that is stuck in an HPLC system or column- How To
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Removing polyimide from capillaries without using heat - How To
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Retention and or peak shape for citric acid has changed compared to data from a previous HPLC run - Tips & Suggestions
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Simplifying getting started with Chemical Solutions HPLC Qualification Kits - How To
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Since Cogent TYPE-C columns can be used in Reversed Phase or Normal Phase what do you suggest to switch these solvent systems which are not miscible - FAQ
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Store and condition Cogent TYPE-C HPLC columns - How To
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Store and maintain Cogent Diamond Hydride HPLC columns - How To
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Storing the HPLC column supplied in the Chemical Solutions Qualification kits - How To
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Techniques to prepare a 0.05% solution from a tablet for HPLC injection - How to
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Theoretical plate N estimate for real samples - How to
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Two gradients to use for analysis of hydrophilic and or hydrophobic molecules in the same Aqueous Normal Phase ANP method - Tips & Suggestions
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Type of gradient to use for analysis of hydrophilic and hydrophobic molecules in the same HPLC or LCMS run - Tips & Suggestions
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Use a linear flow rate test to check back pressure on an HPLC column - Tech Information
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Use a low concentration of salt in your mobile phase to avoid ion suppression and build up on your inlet source - Tips & Suggestions
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Using knitted delay tubes KDTs in mass directed prep chromatography - How To
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Using temperature changes for separations of terpenoids with the Cogent Bidentate C18 and UDC-Cholesterol HPLC columns - Tips & Suggestions
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Using the wavelength calibration solution holmium oxide for HPLC UV detector performance qualification - Tips & Suggestions
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Validating HPLC and LC-MS Methods for Regulated Labs - Primer
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What are the maximum changes allowed in a USP method- FAQ
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What are the thread specifications for the PEEK columns - FAQ
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What can cause changing retention times and a peak showing up in my blank with a Silica-C column - FAQ
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What is 0.1 % w/v ammonium acetate in terms of molarity - FAQ
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What is the correct thread type and tubing to use with the filter sparging stones - FAQ
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What problems can occur when using a dedicated Reversed Phase HPLC instrument for an Aqueous Normal Phase ANP method for the first time - FAQ
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Where a static mixer for HPLC instruments should be placed - Tips & Suggestions
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Why am I seeing multiple peaks in HPLC runs of fructose - Tips & Suggestions
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