Abstract In the present work, density ρ, speed of sound u and FT-IR studies of l -serine and l -threonine have been carried out in (0.01, 0.03 and 0.05) mol kg−1 of 1-butyl-3-propyl imidazolium bromide ([BPim][Br]) at different temperatures (288.15 K, 298.15 K, 308.15 K, 318.15 K) at experimental pressure p = 0.1 MPa. Based on the measured densities, different thermo physical parameters like apparent molar volume V ϕ (AMV), partial molar volume V ϕ 0 (PMV) and standard partial molar volume of transfer Δ V ϕ 0 have been calculated whereas from data of speed of sound; apparent molar isentropic compression K ϕ , s , partial molar isentropic compression K ϕ , s 0 and partial molar isentropic compression of transfer Δ K ϕ , s 0 have been depicted. Transfer parameters have also been calculated and used to compute the pair and triplet interaction coefficients. Infrared spectral studies have also been performed in order to verify the results obtained. The work is mainly focused on prediction of various interactions present in the ternary system consisting of amino acids (AAs), 1-butyl-3-propyl imidazolium bromide ([BPim][Br]) and water.

中文翻译：

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在 T = (288.15, 298.15, 308.15, 318.15) K 时，蛋白质氨基酸 L-丝氨酸/L-苏氨酸对 1-丁基-3-丙基溴化咪唑水溶液的体积和声学行为的影响

摘要 在目前的工作中，1-丁基-3-丙基的密度 ρ、声速 u 和 l-丝氨酸和 l-苏氨酸的 FT-IR 研究已在 (0.01, 0.03 和 0.05) mol kg-1咪唑溴化物 ([BPim][Br]) 在不同温度 (288.15 K, 298.15 K, 308.15 K, 318.15 K) 在实验压力 p = 0.1 MPa。根据测量的密度，计算了不同的热物理参数，如表观摩尔体积 V ϕ (AMV)、偏摩尔体积 V ϕ 0 (PMV) 和标准偏摩尔转移体积 Δ V ϕ 0，而根据声速数据; 表观摩尔等熵压缩 K ϕ , s ，部分摩尔等熵压缩 K ϕ , s 0 和部分摩尔等熵转移 Δ K ϕ , s 0 已被描述。传输参数也已计算并用于计算对和三重相互作用系数。还进行了红外光谱研究以验证所获得的结果。这项工作主要集中在预测由氨基酸 (AAs)、1-丁基-3-丙基溴化咪唑鎓 ([BPim][Br]) 和水组成的三元系统中存在的各种相互作用。