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. Author manuscript; available in PMC: 2022 Feb 28.
Published in final edited form as: Eur J Pharm Biopharm. 2018 May 29;129:162–174. doi: 10.1016/j.ejpb.2018.05.033

Table 1.

Integrated parameters that were used to describe the average phenol red concentrations along the different compartments in Model 1. The parameters assigned with the asterisk “*’ are the parameters that were subject of optimization to estimate their value for each individual dataset.

Parameter Meaning Value Reference
*t1/2_stm Gastric half-life of emptying (min) 13 Optimized by curve fitting
*t1/2_duo Duodenal half-life of emptying (min) 10.8 Optimized by curve fitting
*t1/2_jej Jejunal half-life of emptying (min) 25.6 Optimized by curve fitting
Vrstm Residual volume stomach (mL) 35 [26]
Vrduo Residual volume duodenum (mL) 6 [26]
Vrjej Residual volume jejunum (mL) 12 [26]
Ca0 Initial dose phenol red administered (μg/mL) 100 [2]
kabs First-order absorption rate constant of water in duodenum and jejunum (min−1) 0.0096 [27,28]