LARK Enterprises, Inc.
Organic/ Analytical Chemistry
LARK Enterprises, Inc.
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Research & Quality Control Services
Gel Permeation Chromatography (GPC)
High Performance Liquid Chromatography (HPLC)
Anion & Cation Ion Chromatography (IC)
Ion Exclusion Chromatography (IEC)
Preparative Chromatography (GPC & HPLC)
LC/GPC/IC Methods Development
Differential Scanning Calorimetry (DSC)
Thermogravimetric Analysis (TGA)
Fourier Transform Infrared Spectrophotometry (FTIR)
Scanning UV/VIS
ASTM Methods
ASTM Methods
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ASTM D1243-95 Standard Test Method for Dilute Solution Viscosity of Vinyl Chloride Polymers
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ASTM D1601-99 Standard Test Method for Dilute Solution Viscosity of Ethylene Polymers
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ASTM D2222-19 Standard Test Method for Methanol Extract of Vinyl Chloride Resins
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ASTM D2857-22 Standard Practice for Dilute Solution Viscosity of Polymers
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ASTM D3016-97 Standard Test Method for Molecular Weight Averages and Molecular Weight Distribution of Polystyrene by High Performance Size-Exclusion Chromatography
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ASTM D5296-19 Standard Test Method for Molecular Weight Averages and Molecular Weight Distribution of Polystyrene by High Performance Size-Exclusion Chromatography
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ASTM D3417-99 Standard Test Method for Enthalpies of Fusion and Crystallization of Polymers by Differential Scanning Calorimetry (DSC)
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ASTM D3418-21 Standard Test Method for Transition Temperatures and Enthalpies of Fusion and Crystallization of Polymers by Differential Scanning Calorimetry
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ASTM E411-24 Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine
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ASTM D5910-05 Standard Test Method for Determination of Free Formaldehyde in Emulsion Polymers by Liquid Chromatography
Thin Layer Chromatography (TLC)
Capillary Viscometry
Wet Chemistry
Custom Solutions
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