Gas Chromatography Lab Report
Gas Chromatography Analysis of Product Mixtures
Gas Chromatography Guidelines, Handout.
Introduction
Gas chromatography is a technique used to analyze chemical compounds that can be vaporized and separated in a gas phase column. Once separated, the analyzed substance is passed through a detector and data is obtained. The samples that we are going to analyze are: the EtOAc from Simple distillation, the Fraction 1, Fraction 2, and Fraction 3 from the Fractional Distillation.
Experimental Procedure 1. Inject a 5 µL sample of EtOAc from the Simple Distillation. Determine the actual % recovery of the purified EtOAc based on the % composition observed from the gas chromatogram. 2. Inject a 5 µL sample of Fraction 1 from the Fractional Distillation. Determine the actual % recovery of the purified EtOAc based on the % composition observed from the gas chromatogram. 3. Inject a 5 µL sample of Fraction 2 from the Fractional Distillation. Record the % composition of EtOAc and BuOAc as observed from the gas chromatogram. No calculation for Fraction 2.
Inject a 5 µL sample of Fraction 3 from the Fractional Distillation. Determine the actual % recovery of the purified BuOAc based on the % composition observed from the gas chromatogram.
Results
Initial Volume of Fractional Distillation: 20mL
Volume of Fraction 1: 2.8mL
Volume of Fraction 2: 8.9mL
Volume of Fraction 3: 7.1mL
Initial Volume of Simple Distillation: 10mL
Volume of EtOAc Simple Distill: 9.6 mL
Actual %recovery of EtOAc(Simple Distillation): (9.6mL)(99.348%) = 9.5mL = 95% recovered
Actual %recovery of EtOAc(Fractional Distillation): (2.8mL)(91.323%) = 2.6mL = 26% recovered
Actual %recovery of BuOAc(Fractional Distillation): (7.1mL)(96.03%) = 6.8mL = 68% recovered
% composition of EtOAc = 65.204%
% composition of BuOAc = 34.388%
Theory and Conclusion
Gas Chromatography is a technique used to analyze volatile components of a liquid or gas sample. Gas Chromatography separates the
Gas Chromatography Guidelines, Handout.
Introduction
Gas chromatography is a technique used to analyze chemical compounds that can be vaporized and separated in a gas phase column. Once separated, the analyzed substance is passed through a detector and data is obtained. The samples that we are going to analyze are: the EtOAc from Simple distillation, the Fraction 1, Fraction 2, and Fraction 3 from the Fractional Distillation.
Experimental Procedure 1. Inject a 5 µL sample of EtOAc from the Simple Distillation. Determine the actual % recovery of the purified EtOAc based on the % composition observed from the gas chromatogram. 2. Inject a 5 µL sample of Fraction 1 from the Fractional Distillation. Determine the actual % recovery of the purified EtOAc based on the % composition observed from the gas chromatogram. 3. Inject a 5 µL sample of Fraction 2 from the Fractional Distillation. Record the % composition of EtOAc and BuOAc as observed from the gas chromatogram. No calculation for Fraction 2.
Inject a 5 µL sample of Fraction 3 from the Fractional Distillation. Determine the actual % recovery of the purified BuOAc based on the % composition observed from the gas chromatogram.
Results
Initial Volume of Fractional Distillation: 20mL
Volume of Fraction 1: 2.8mL
Volume of Fraction 2: 8.9mL
Volume of Fraction 3: 7.1mL
Initial Volume of Simple Distillation: 10mL
Volume of EtOAc Simple Distill: 9.6 mL
Actual %recovery of EtOAc(Simple Distillation): (9.6mL)(99.348%) = 9.5mL = 95% recovered
Actual %recovery of EtOAc(Fractional Distillation): (2.8mL)(91.323%) = 2.6mL = 26% recovered
Actual %recovery of BuOAc(Fractional Distillation): (7.1mL)(96.03%) = 6.8mL = 68% recovered
% composition of EtOAc = 65.204%
% composition of BuOAc = 34.388%
Theory and Conclusion
Gas Chromatography is a technique used to analyze volatile components of a liquid or gas sample. Gas Chromatography separates the