磷酸氢二钠

The linear ranges were 14.0￣140 μg/ml( r = 0.9998 ) for caffeine; 27.0￣270.0 μg/ml ( r = 0.9998 )for antipyrine; 0.1￣1.0 mg/ml ( r =0.9999) for sodium salicylate.

色谱条件为：KromasilC18色谱柱，流动相为20mmol／L磷酸二氢钾－甲醇－冰醋酸（55250.4），流速1ml／min，检测波长为242nm，线性范围：咖啡因14.0～140.0μg／ml，r＝0.9998；安替比林27.0～270.0μg／ml，r＝0.9998；水杨酸钠0.1～1.0mg／ml，r＝0.9999。

It was found that these two nutrients affected the growth of Chlorella significantly,and there were significant interaction between them.

结果表明，氯化铵和磷酸二氢钠对该藻增殖具有极显著作用，且这两种营养盐之间存在交互作用。

The influences of different surfactants (sodium dodecyl sulfate, sodium cholate and sodium deoxycholate), different electrolytes (sodium phosphate monobasic, sodium tetraborate and 3-cyclohexylamino-1-propane sulfonic acid), buffer pH and organic modifiers on the determination of sialic acid were studied.

其次建立了一种测定唾液酸的在线富集CZE法，该方法用40 mM磷酸二氢钠为缓冲溶液电解质，通过将样品溶解在乙腈：水=2：1的样品基体中，进样时间增加到100 s来达到样品富集的效果，并考察了样品基体中乙腈浓度和进样时间对富集效果的影响，研究了用硼砂或3-环己胺-1-丙烷磺酸作为电解质、缓冲溶液pH值和有机修饰剂的加入对唾液酸检测的影响。

Objective To observe the effect of menadiol sodium diphosphate induced mutation.

目的 观察甲萘氢醌二磷酸酯钠的诱变作用。

WPA ; reaction ; crystallization ; food additive ; disodium hydrogen phosphate

本研究针对原料所含杂质、食品添加剂磷酸二氢钠得率问题以及生产

Catalytic activities and regioselectivities of sodium dihydrogen phosphate for nitrations of toluene were investigated by gas chromatography.

研究了磷酸二氢钠催化甲苯硝化反应的催化活性，通过气相色谱考察了催化剂用量、反应时间、硝化反应温度及催化剂的重复使用等因素对甲苯转化率和产物区域选择性的影响。

Pingxiang Iron and Steel Co., Ltd. has developed a de-cyanide pretreatment technology with molysite, but the concentration of CN - at a range of 10～18 mg/L in the wastewater after treating is still too high as for germ in dephenolization. The influence o...

根据对活性污泥的驯化过程对脱酚活性污泥影响的研究，得出适于细菌生存繁殖的运行参数为磷酸二氢钠加入量 12kg/d以上，葡萄糖 9kg/d以上，自沉污泥指数约 2 0mL/10 0mL ，回流污泥指数约 30mL/10 0mL ，温度为 2 5～35℃。

Electrophoretic conditions were as follows: an applied voltage of 20kV, at 25℃, detected at a wavelength 201nm. The main components in white muscardine silkworm are successfully separated.

电解质溶液由以10mmol/L磷酸二氢钠-20mmol/L的硼砂溶液(pH8.62)作缓冲液，在25℃，20kV的压力下进行电泳，201nm波长处检测，线性关系良好，在25min内完全分离。

By this system, substantial quantities of fungal materials, including hyphae and spores, can be obtained.

这反映出磷酸二氢钾和卵磷脂的有效性较高，植酸钠的有效性相对较低。

A neutral non-cyanide copper plating (rack plating and barrel plating) process was developed.

开发出钢铁基体上中性无氰镀铜工艺，其配方中的配位剂是需要经过多道工序合成的具有x结构的化合物，还含有醋酸铜和磷酸二氢钠。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。