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Table 3 Actual Concentrations of Tween-80 and non-Tween-80 containing solutions at 0, 2, and 4 months stored at room temperature and protected from light, and room temperature exposed to light.

From: The effects of Tween-80 on the integrity of solutions of capsaicin: useful information for performing tussigenic challenges

  

Actual Concentration (% predicted)

  

Tween-80

Non-Tween-80

Predicted Concentrations (in μM)

Environment

0 month

2 months

4 months

0 month

2 months

4 months

4.0

RT/dark

3.12 (78.0)

1.24 (31.1)

0.79 (19.8)

2.48 (62.0)

0.45 (11.2)

0.04 (1.1)

8.0

RT/dark

6.27 (78.4)

3.93 (49.1)

3.47 (43.4)

4.92 (61.5)

1.06 (13.3)

0.61 (7.6)

16.0

RT/dark

13.74 (85.9)

8.93 (55.8)

8.46 (52.9)

10.37 (63.1)

3.62 (22.6)

1.47 (9.2)

4.0

RT/light

3.12 (78.0)

0.13 (3.2)

0.03 (0.7)

2.48 (62.0)

0.08 (2.0)

0.00 (0.0)

8.0

RT/light

6.27 (78.4)

0.74 (9.2)

0.70 (8.7)

4.92 (61.5)

0.30 (3.7)

0.00 (0.0)

16.0

RT/light

13.74 (82.7)

3.44 (21.5)

1.73 (10.8)

10.37 (63.1)

2.70 (16.9)

1.12 (7.0)

  1. RT/dark = room temperature and protected from light, RT/light = room temperature and exposed to light