The methods of ninhydrin and molybdenum blue, and bi directional soil section slicing were used.
利用茚三酮法、钼蓝法及土壤双向切片法。
The proof of grafting was established by IR spectra, ninhydrin test, nitrogen estimation and other analytical methods.
并用红外光谱、水合茚三酮反应、含氮量分析等方法验证接枝反应的进行。
Its ninhydrin reaction was negative, but after acid hydrolysis, its ninhydrin reaction and biuret reaction were positive.
茚三酮反应呈阴性，用酸水解后茚三酮反应和双缩脲反应呈阳性。
It was conducted to determine the lysine content of harvested grain in 100 different varieties or lines in wheat by ninhydrin colorimetry method.
利用茚三酮比色法测定100个不同类型小麦籽粒的赖氨酸含量。
Methods: color reaction of free amino acids with ninhydrin was adopted, since, in certain extent, the color depth is correlated with the amino acid content.
方法：采用氨基酸的游离氨基与水合茚三酮产生显色反应，在一定范围内，其颜色的深浅与氨基酸的含量成正比。
The surface amino group was transferred to the aldehyde group after it reacted with ninhydrin. The surface aldehyde group was confirmed by the mirror reaction.
表面的伯胺基在与茚三酮反应后转化为醛基，通过银镜反应证明了醛基的存在。
Methods Alendronate sodium was determinated by colorimetry and ninhydrin ethanolic solution was used as chromogenic agent in alakaline condition and detection wavelength was at 568.
方法在碱性条件下，以（水合）茚三酮乙醇溶液为显色剂，采用比色法测定，检测波长为568。
Analysis by thin layer chromatography, original spot hydrolyzed-ninhydrin color, infrared spectrum indicated that the biosurfactant of metabolite after culturing of the strain was lipopeptide.
薄层色谱与原位水解显色和红外光谱分析表明，培养后菌株代谢产生的生物表面活性为脂肽。
Analysis by thin layer chromatography, original spot hydrolyzed-ninhydrin color, infrared spectrum indicated that the biosurfactant of metabolite after culturing of the strain was lipopeptide.
薄层色谱与原位水解显色和红外光谱分析表明，培养后菌株代谢产生的生物表面活性为脂肽。
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