16939 个结果符合：“Vespel Ferrules for GC”

Supplier: VWR Chemicals

Due to its excellent separation capacity and its high sensitivity gas chromatography is a widely used technique for analytical purposes. In order to get proper identification and quantification results of the analysed compounds, reference standards are needed. These PESTINORM® reference substances can be used for the characterisation of GC column properties. In addition they may also be used for the identification of unknown compounds in a gas chromatogram or as standards in quantitative GC analysis.

Supplier: Avantor

丙酮 ≥99.5% (by GC, corrected for water content), CMOS for microelectronic, J.T.Baker®

Supplier: Avantor

General purpose low to mid polarity phase for a wide range of applications, including (for example): Residual solvents, volatile pollutants. HI-624 MS is an MS grade cross-bonded column.

Supplier: Avantor

Very popular nitroterephthalic-acid-modified polyethylene glycol (PEG) column of high polarity for the analysis of free fatty acids, phenols, alcohols, glycols, with extended temperature range.

Supplier: Avantor

n-Heptane ≥99.0% (by GC, corrected for water content) for HPLC, UHPLC, for spectrophotometry, J.T.Baker®

Supplier: VWR Chemicals

Petroleum spirit, 40…60 °C, PESTINORM® for capillary GC analysis

Supplier: Avantor

Application specifc column for free and total glycerine (phase stable up to 380 °C) and for FAMEs in biodiesel analysis.

Supplier: MACRON AVANTOR BRAND

甲苯 ≥99.5% (by GC), AR® ACS, Macron Fine Chemicals™

Supplier: Avantor

Application specifc columns developed for complex solvents mixtures analysis. HI-SOLVE 2 is ideal for aromatics and oxygenates in gasoline.

Supplier: Avantor

General purpose column for solvent impurities, PCBs, hydrocarbons, essential oils, semivolatiles, triglycerides, pesticides, poly-waxes, etc.

Supplier: Avantor

Application specifc column for free and total glycerine (phase stable up to 380 °C) and for FAMEs in biodiesel analysis.

Supplier: Avantor

High Temperature general purpose column ideal for PCBs compounds, Pesticides, environmental analysis.

Supplier: Avantor

1,1,2,2-四氯乙烷 ≥98% (by GC), J.T.Baker®

Supplier: Avantor

氯仿 ≥99.8% (by GC, corrected for water content), purified, J.T.Baker®

Supplier: VWR Chemicals

甲醇 ≥99.9% (by GC), HiPerSolv CHROMANORM® for LC-MS, suitable for UPLC/UHPLC instruments

Supplier: Avantor

Hexane (mixture of isomers) ≥98.5% (by GC, sum of enantiomers), BAKER ANALYZED® ACS, J.T.Baker®

Supplier: MACRON AVANTOR BRAND

1,2-二氯乙烷 ≥99.0% (by GC, corrected for water content), AR® ACS, Macron Fine Chemicals™

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

Supplier: Avantor

氯仿 ≥99.8% (by GC, corrected for water content) stabilised, ULTRA RESI-ANALYZED® for organic residue analysis, J.T.Baker®

Supplier: Avantor

三醋酸甘油酯 ≥99% （通过GC）, J.T.Baker®

Supplier: MACRON AVANTOR BRAND

Hexane (mixture of isomers) ≥98.5% (by GC), AR® ACS, Macron Fine Chemicals™

Supplier: Avantor

甲醇 ≥99.9%, ULTRA RESI-ANALYZED® for gas chromatography, for purge and trap GC analysis, J.T.Baker®

Supplier: Avantor

General purpose mid-to-high-polarity phase for a wide range of applications, like, for example: FAMEs, carbohydrates, sterols, flavor compounds. HI-225 MS is an MS grade crossbonded column.

Supplier: Avantor

Useful for the analysis of chiral compounds in fragrances, pesticides and pharmaceuticals in which the determination of the ratio of enantiomers in a sample is necessary.

Supplier: Avantor

Unique selectivity for the separation of enantiomers. Useful for the analysis of chiral compounds in fragrances, pesticides and pharmaceuticals in which the determination of the ratio of enantiomers in a sample is necessary.

Supplier: Avantor

Unique selectivity for the separation of enantiomers. Useful for the analysis of chiral compounds in fragrances, pesticides and pharmaceuticals in which the determination of the ratio of enantiomers in a sample is necessary.

Supplier: Avantor

Useful for the analysis of chiral compounds in fragrances, pesticides and pharmaceuticals in which the determination of the ratio of enantiomers in a sample is necessary.

Supplier: Avantor

Useful for the analysis of chiral compounds in fragrances, pesticides and pharmaceuticals in which the determination of the ratio of enantiomers in a sample is necessary.

Supplier: Avantor

甲苯 ≥99.7% (by GC, corrected for water content), ULTRA RESI-ANALYZED® for organic residue analysis, J.T.Baker®

Supplier: Avantor

氯仿 ≥99.8% (by GC, corrected for water content) stabilised, BAKER ANALYZED® HPLC for HPLC, UHPLC, for spectrophotometry, J.T.Baker®