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determination of phenylephrine hydrochloride in combination with other amine-type drugs. The mixture is placed on a sodium borate-Celite column and the nonphenolic amines are removed with chloroform. The phenylephrine remaining on the column is acetylated and removed with a chloroform wash. The acetylated phenylephrine is then saponified with alcoholic KOH and determined spectrophotometrically against standard phenylephrine at about 290 mμ. Recoveries averaged 98.5% with a range of 93.3–101.7%. Mean deviation from the average was 1.8%. The method was adopted as official, first action.

The technique of sweep co-distillation developed for organophosphate pesticides in fruits and vegetables was expanded for application to organophosphate and chlorinated hydrocarbon pesticides in edible oils. A modified longer and wider Storherr tube and heating assembly was used in this work and 3 mm diameter glass beads replaced the glass wool packing used in crop work. The work on oils was performed at 248 ± 3°C with a nitrogen flow of 600 ml/min and injection of a sweeping solvent every 3 minutes for 30 minutes. Phosphate pesticides were analyzed by GLC with a potassium thermionic detector and chlorinated pesticides were determined by ECGLC, after a micro Florisil column was used to eliminate extraneous peaks. Recoveries of ten phosphate pesticides from nine edible oils ranged from 74 to 100% at fortification levels of 0.04 to 6.25 ppm; average recoveries for the individual pesticides were 90—99%. Average recoveries for the chlorinated pesticides ranged from a low of 75% for Tedion to a high of 98% for endrin and dieldrin. Sensitivity of 0.01 is readily obtainable for compounds such as parathion and heptachlor cpoxide. The sweep co-distillation method is suitable for the rapid determination of the 14 chlorinated and 10 organophosphate pesticides tested in edible oils

Radiolysis of aerated CH3OH produced no peroxide until approximates 0.5 wt % H2O was added; the G(H2O2) then jumped from practically zero to the plateau value of 2.8. Several possible explanations of this phenomenon are considered. Finally, the H2O addition did not affect the production of ethylene glycol (G =0), HCO2H (1.8 ± 0.2), and CH2O (10 ± 1).

Fish fillets and eggs were ground and blended to obtain a uniform fish mush. Two different methods were used to dry the samples; both were effective. Samples were combusted in a Schoniger flask, and mercury levels were measured using cold vapor atomic absorption. Comparison checking indicated that the procedure is applicable to a wide variety of materials, and can probably be used on any material that can be burned. 2 tables.