Its infrared spectrum has absorption peak of water.

红外光谱中水的吸收明显；

Red and blue shifts were not found at absorption peak positions.

随着温度升高，峰值位置未见红移或蓝移。

The absorption peak of FL was red shifted when silver nanoparticles were added.

FL溶液中加入纳米银，FL分子吸收峰位发生红移。

According to the result of FTIR, the absorption peak of the hemicellulose became weaker.

FTIR分析表明，半纤维素和部分木质素的特征吸收峰减弱。

The absorption peak intensity of alcohol - aqua association system was in proportion to alcohol content.

利用乙醇 - 水缔合体系产生的吸收峰强度与乙醇含量成比例的关系,建立了测定乙醇的新方法.