吸光度

Keywords Wood vinegar;amino acid;pH value;organic acid content;absorbance

木醋液；氨基酸； pH值；有机酸含量；吸光度

To the separatory funnel in 10 ml acetate buffer and dispensable 1 ml of sodium thiosulfate solution, blending, followed by a second all-Canadian 10.0mL tetrachlorocarbon dithizone-0.01g/L solution, vibrating 2min, standing out carbon tetrachloride layer to 1 cm chromatometry Cup, zero-zero, adjusting to 520nm wavelength measuring the absorbance at, draw a comparison between the quantitative standard curve.

向各分液漏斗内加5mL乙酸盐缓冲液及1mL硫代硫酸钠溶液，混匀后再各加10.0mL二硫腙－四氯化碳溶液(0.01g/L)，振摇2min，静置分层，分出四氯化碳层于1cm比色杯中，以零管调节零点，于520nm波长处测吸光度，绘制标准曲线比较定量。

The amount of pesticide residues was determined by measuring the light absorbency of the sample liquid after inhibition reaction.

研究了吸光度随反应时间的变化关系、温度对酶活性的影响及农药残留浓度与酶抑制率的关系。

It has been found that there is a good linear relationship between absorbency and concentration. Besides, the accuracy, recovery and speciality are very perfect.

发现吸光度与浓度呈良好的线性关系，且方法的精密度和回收率都很理想，专一性也较好。

The correlative parameters of the film quality are analyzed through absorbency and permeability.

通过薄膜透过率和吸光度分析，探讨了各工艺参数对成膜品质的影响。

The absorbency of CpG-1 and CpG-6 measured by MTT assay were significantly higher than negative control group.

MTT法测出CpG-1和CpG-6的吸光度值均高于空白对照(P＜0.05)。

Methods: Streptomycin and the derivatization reagent o-phthalaldehyde occur Amine Acetalization generating derivative product with UV absorption and determined the absorbance in special wave length, obtained streptomycin residues in samples then compare with high-performance liquid chromatography.

将试样与衍生化试剂邻苯二甲醛进行胺缩醛反应，即化学衍生处理，生成具有特定波长的紫外吸收的衍生产物，测定其吸光度，求出样品中链霉素残留量，并与高效液相色谱法比较。

A UV\|spectrophotometry method was used to determine the content of brightener benzalacetone in potassium chloride zinc electroplating , and many factors affecting the UV absorption were studied such as pH, inorganic salt, sodium higher fatty alcohol polyoxyethylene sulphate, etc.

研究了酸度、无机盐、高级脂肪醇聚氧乙烯醚硫酸钠等对氯化钾型镀锌主光亮剂苄叉丙酮吸光度的影响。

The nitrite in food was converted to manganese bioxide precipitate by potassium permanganate under acid condition. The precipitate was dissolved in sulphuric acid and the absorptivity of manganese was determined by atomic absorption spectroscopy, so that the content of nitrite was obtained indirectly.

在酸性条件下，用高锰酸钾将食品中的亚硝酸盐先转化成二氧化锰沉淀，再用硫酸溶解沉淀，以原子吸收光谱法测定锰的吸光度，从而间接得到亚硝酸盐的含量，回收率在97.6%~105.2%之间。

A new method was developed for detection of the hydroxyl radical in Fenton reaction by bromocresol green oxidative assay. After oxidized by hydroxyl radical, the absorbance of bromocresol green is decreased apparently.

利用Fenton反应产生的羟基自由基与染料试剂溴甲酚绿(Bromocresol green， BG)发生氧化反应后使其吸光度值降低，建立了一种可间接测定羟基自由基的新方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。