Urey-Miller Experiment.

Figure 4. Urey-Miller experiment as depicted in your textbook. Yields from sparking a mixture of CH4, NH3, H2O and H2 (there was no nitrogen gas and carbon dioxide as shown) given below (Per cent yields based on 59 mmoles of carbon added as CH4): Compound Yield mmoles % a-Amino-n-butyric acid 50 0.34 a-Aminoisobutyric acid 1 0.007 b-Alanine 150 0.76 Acetic acid 150 0.51 Alanine 340 1.7 Aspartic acid 4 0.024 Formic acid 2330 4.0 Glutamic acid 6 0.051 Glycine 630 2.1 Glycolic acid 560 1.9 Iminodiacetic acid 55 0.37 Iminodiacetic-propionic acid 15 0.13 Lactic acid 310 1.6 N-Methylalanine 10 0.07 N-Methyl urea 15 0.051 Propionic acid 130 0.66 Sarcosine 50 0.25 Succinic acid 40 0.27 Urea 20 0.034