目的建立用内标法测定人血浆中头孢羟氨苄浓度的HPLC-UV方法。
Plasma concentrations of cefadroxil and internal standard were determined by HPLC-UV.
其中最准确可靠的方法是分别测定水面以上0.8米处的风速和氨的浓度，以计得氨挥发量。
The most accurate and reliable technique involved the measurements of wind speed and ammonia concentrations in the atmosphere at 0.8 m above the floodwater surface.
酿酒废水是一种典型的高氨氮浓度的有机废水。
Distillery wastewater was typical organic wastewater with high ammonia concentration.
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