Abstract.From the experimental analysis GC (Gas Chromatography) is a technique of tear components of the mixture. The use of this method with a substance that can evaporation. Based on the difference of the rate of movement of each component of the mixture on the stationary phases (Stationary phase) ซึงเป็น substance in the column. Under the leading of the mobile phase (Mobile phase), which have the status of gas, such as helium or nitrogen, in which columns will be break mixture. The difference of molecular weight, the boiling point, the structure of, and the ทำปฏิกิริยากับ substance within the column. Using voltage of positive charge and negative charge, as the signals. Then the substance enters the measurement signal (Detecter) and PR the signal from the sensing out chrome master"s game. Chromatogram) material, which will have a period of each substance in column (Retention time RT), unique in the area under the analysis of ผลจะ peak. To calculate the compared to the standard curve will make know the concentration of the sample.From the experiment HPLC (High Performance Liquid Chromatography) is a technique to keep the composition of the mixture on the stationary phases, and mobile phase. Which is a state to the liquid. This technique is the use of high power pump pressure to the liquid moves into the column. By this method, must consider the solubility of compounds to analyze with organic solvent used. The difference of the rate of movement of each component of the mixture. The substance is being brought into the column by organic solvent mixtures. To cause to stop and then enters the measuring equipment of message signal, and the signal pr out chrome master"s game. Make know the amount of substance in liquid.
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