Copovidone is co-polymer made by N-vinyl-2- pyrolidone and vinyl acetate. It is used for coating agent or binder. Copovidone is insoluble in water, so dimethyl formamide (DMF) was used as the eluent. In this application, Even though DMF is used as the eluent, adding lithium bromide into the eluent is effective. Lithium bromide was added for analyzing copovidone.
Sample : 100µL
Poly(1-vinylpyrrolidone-co-vinyl acetate) 0.1% each
Copolymer 7:3
Copolymer 3:7
Columns : Shodex OHpak SB-806M HQ (8.0mmI.D. x 300mm) x 2 Eluent : 20mM LiBr in DMF Flow rate : 1.0mL/min Detector : Shodex RI Column temp. : 40°C
Sample Name Index
Operation Manual / Certificate of Analysis
Operation Manuals and Certificate of Analysis / Inspection Certificate for the following products can be downloaded here.
Product Name Index
Applications
- Polystyrene Standards (9) (KD-802)
- Polystyrene Standards (21) (GF-HQ : THF, Chloroform and DMF)
- Poly(Ethylene Oxide) Standards (KD-806M + KD-802)
- Poly(Ethylene Glycol) Standards (2) (DMF Eluent) (KD-802 + KD-801)
- Phenol Resin (2) (KD-803 + KD-802)
- Phenoxy Resin (2) (KD-806M)
- Phenoxy Resin (3) (LF-604)
- Melamine Resin (KD-802)
- Melamine-Formaldehyde Resin (DMF Eluent) (KD-802)
- Polyvinylpyrrolidone (1) (DMF Eluent: KD-806M)
- Polyvinylpyrrolidone (4) (DMF Eluent: Effects of LiBr Concentration) (KD-806M)
- Poly(vinylidene Fluoride) (KD-806M)
- Cellulose Acetate (1) (KD-806M)
- Cellulose Acetate (4) (DMF Eluent: Effects of LiBr Concentration) (KD-806M)
- Cellulose Acetate (5) (SB-806M HQ)
- Chlorinated Rubber (KD-806M)
- Styrene Allylalcohol Copolymer (1) (KD-803 + KD-802)
- Styrene Maleic Anhydride Copolymer (KD-806M)
- Styrene Acrylonitrile Copolymer (1) (KD-806M)
- N-Vinylpyrrolidone Vinyl Acetate Copolymer (KD-806M)
- Vinyl Chloride Vinyl Acetate Copolymer (1) (KD-806M)
- Vinylidene Chloride Acrylonitrile Copolymer (1) (KD-806M)
- Vinylidene Chloride Acrylonitrile Copolymer (2) (Comparison of KD-800 and SB-800 HQ)
- Poly(-N,N-Dimethylaminomethyl Styrene) (1) (DMF Eluent) (Comparison KD-800 with SB-800 HQ)
- Phenol Formaldehyde Resin (Comparison of KD-800 and SB-800 HQ)
- Ethylene Maleic Anhydride Copolymer (Comparison of KD-800 and SB-800 HQ)
- Polycarbonate Resin (2) (Comparison of SB-800 HQ and KD-800)
- Poly(4-Vinylpyridine) (LF-804)
- Poly(4-vinylpyridine) (HK-404L)
- Poly(2-Vinylpyridine-co-styrene) (LF-804)
- Poly(Vinyl Butyral) (3) (LF-604)
Applications (Related Information)
- Calibration Curves for KD-800 Series (DMF Eluent: PEG, PEO)
- Calibration Curves for KD-800 Series (DMF Eluent: PMMA)
- Calibration Curves for HK-400 Series (DMF Eluent: PEG, PEO)
- Calibration Curve for LF-804 (DMF Eluent: PEG, PEO)
- Calibration Curves for KF-806L (Various Eluents: PS)
- Comparison of Calibration Curves for KD-800 Series and SB-800 HQ Series (DMF Eluent)
- Comparison of Calibration Curves for KD-802.5 and SB-802.5 HQ (DMF Eluent: PEG, PEO and PS)
- Calibration Curves for SB-800 HQ Series (DMF Eluent: PEG, PEO)
- Calibration Curves for SB-800 HQ Series (DMF Eluent: PMMA)
- Calibration Curves for SB-800 HQ Series (DMF Eluent: PS)
- Calibration Curves for SB-806M HQ (DMF Eluent: PEG, PEO and PS)
- Calibration Curves for LB-800 Series (DMF Eluent: PEG, PEO)
- Calibration Curves for GF-HQ Series (DMF Eluent: PS)
- Calibration Curve for GF-510 HQ + GF-310 HQ (DMF Eluent: PS)
- Calibration Curves for GF-HQ Series (DMF Eluent: PEG, PEO)
- Calibration Curves for GF-HQ Series (DMF Eluent: PMMA)