Article Figures & Data
Figures
- FIGURE 1.
Materials used to simulate gastric environment and examine radiolabeling: simulated gastric fluid with HCl and pepsin. Bovine serum albumin was used to evaluate radiolabeling efficacy.
- FIGURE 2.
Twelve test tubes with radiolabeled cooked egg whites separated from simulated gastric fluid.
Tables
Material Quantity 99mTc-SC 5.92 MBq (160 μCi) 1% bovine serum albumin 0.5 mL NaCl 15 mL HCl and pepsin 3.5 mL Distilled water 50 mL Sterile gauze pack 1 Test tubes 24 Test tube rack 1 1,000-mL beakers 2 Hot plate with stirrer 1 Food scale 1 3-mL syringes 12 Liquid egg whites 118 mL Paper cup 2 Square disposable plastic scale-tray 2 Metal laboratory spatula 1 Foam cup 2 Microwave 1 Dose calibrator 1 Well counter 1 Survey meter 1 Time Simulated gastric fluid Precooked egg whites Radiolabeling efficacy 2 h 5,784 12,656 (12,656/18,440) × 100 = 69% 5,676 12,689 (12,689/18,365) × 100 = 69% 5,974 12,679 (12,679/18,653) × 100 = 68% 4 h 4,542 12,628 (12,628/17,170) × 100 = 74% 5,200 12,630 (12,630/17,830) × 100 = 71% 5,467 12,659 (12,659/18,126) × 100 = 70% Mean of precooked sample set is 70%. All measurements are in counts per minute.
Time Simulated gastric fluid Postcooked egg whites Radiolabeling efficacy 2 h 12,548 12,176 (12,176/24,724) × 100 = 49% 11,666 10,954 (10,954/22,620) × 100 = 48% 11,165 11,358 (11,358/23,023) × 100 = 49% 4 h 10,903 11,478 (11,478/22,381) × 100 = 51% 11,729 12,572 (12,572/24,301) × 100 = 52% 12,196 11,973 (11,973/24,169) × 100 = 50% Mean of postcooked sample set is 50%. All measurements are in counts per minute.
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