Skip to main content

Table 1 Average extraction rates of morphine in syringes, according to variations in preparation conditions

From: Intravenous misuse of slow-release oral morphine capsules: how much morphine is injected?

 

Water temperature

Number of syringes per filter

Steribox® filter

Cigarette filter

Sterifilt® basic filter

“Wheel” filter

Average rates

Recovery Rate (%)

Dosage (mg)

Recovery rate (%)

Dosage (mg)

Recovery rate (%)

Dosage (mg)

Recovery rate (%)

Dosage (mg)

Recovery rate (%)

Dosage (mg)

Skenan® dosage

            

 100 mg

Heated (80 °C)

7

68.05%

68.05 mg

58.10%

58.10 mg

54.75%

54.75 mg

82.60%

82.60 mg

65.88%

65.88 mg

   

SD = 13.17%

SD = 13.17 mg

SD = 10.92%

SD = 10.92 mg

SD = 22.60%

SD = 22.60 mg

SD = 2.55%

SD = 2.55 mg

  
 

Ambient (22 °C)

7

51.97%

51.97 mg

45.53%

45.53 mg

52.97%

52.97 mg

72.99%

72.99 mg

55.87%

55.87 mg

   

SD = 6.06%

SD = 6.06 mg

SD = 16.50%

SD = 16.50 mg

SD = 14.70%

SD = 14.70 mg

SD = 9.69%

SD = 9.69 mg

  
 

Average rates

 

60.01%

60.01 mg

51.82% 

51.82 mg

53.86%

53.86 mg

77.80%

 77.80 mg

60.87%

60.87 mg

 200 mg

Heated (80 °C)

7

45.75%

91.51 mg

52.17%

104.34 mg

54.33%

108.67 mg

37.59%

75.17 mg

47.46%

94.92 mg

   

SD = 3.21%

SD = 6.41 mg

SD = 6.36%

SD = 12.73 mg

SD = 11.43%

SD = 22.86 mg

SD = 9.26%

SD = 18.52 mg

  
 

Ambient (22 °C)

7

28.93%

57.85 mg

26.16%

52.32 mg

26.19%

52.38 mg

28.28%

56.55 mg

27.39%

54.78 mg

   

SD = 15.79%

SD = 31.59 mg

SD = 9.28%

SD = 18.57 mg

SD = 18.33%

SD = 36.67 mg

SD = 2.80%

SD = 5.60 mg

  
 

Average rates

 

37.34%

74.68 mg

39.17%

78.33 mg

40.26%

80.53 mg

32.94%

 65.86 mg

37.42%

74.85 mg

  1. SD Standard deviation