Standard methods. Search the Internet for the requested information about the following standard methods.
a. What analyte and in what matrix is U.S. Environmental Protection Agency method 200.7 200.7 designed to analyze?
b. What ASTM method is for analysis of chemical warfare agents such as isopropyl methylphosphonic acid (sarin gas) in soil?
c. What AOAC method is used to determine total, saturated, and unsaturated fat in food for nutritional labels such as Figure 5-4?
d. U.S. Pharmacopeia method 921921 is for what analyte by what technique?

Figure 5-4

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Stearic acid-a saturated fat Oleic acid-a cis monounsaturated fat Linoleic acid a cis polyunsaturated fat A trans unsaturated fat ("trans fat") CO₂H CO₂H CO₂H CO₂H Nutrition Facts 64 servings per container Serving size Amount Per Serving Calories Total Fat 14g Saturated Fat 2g 1 tbsp (14g) 130 % Daily Value* 18% 10% Trans Fat Og Polyunsaturated Fat 4g Monounsaturated Fat 6g Sodium Omg Total Carbohydrate Og Protein Og 0% 0%