量瓶

Transfer 50 ml of this solution to 200-ml Erlenmeyer flask, or, if smaller aliquot is taken, dilute to about 50 ml with water. Add 10 ml 4 N H2SO4, 1 ml KI,1 drop ammonium molybdate solution, and 50 ml water. With continuous agitation, add excess of 0.00359 N Na2S2O3 (5 10 ml).

移取50毫升上述溶液于200毫升于锥形瓶中，如果取样量较少，用水稀释到50 毫升，加入10 ml 4 N H2SO4，1 ml KI， 1滴钼酸胺溶液和50毫升水，边搅拌边加入过量的0.00359 N Na2S2O3溶液(5 10 ml)。

objective to optimize the content and feeding strategy of barbital sodium during the fermentation of rifamycin b in order to improve the yield.

目的优化利福霉素发酵摇瓶中巴比妥钠的添加量及添加策略，以提高发酵产量。

The results in shake flask indicated that the maximam yield was obtained at 60h, the transformation rate of carbon source was 43.5% with 2% inocula; and the normal involved volume had no obvious effect on fermentation.

摇瓶结果表明：以可溶性淀粉作发酵培养基的主要碳源，2%接种量，发酵60h产酸浓度最高，发酵液中富马酸对淀粉的转化率为43.5%，在适量的情况下，装液量对发酵几乎没有影响。

Two 0.5-ml volumes of an isobutanol internal standard (10 mg/ml water; pipette 12.4 ml of isobutanol and dilute to 1 liter with water) are pipetted into two different 2-dram (7.4-ml) shell vials, one market "known."

将两份0.5毫升的异丁醇内标物(浓度为10mg/ml水，其配制法为：用吸量管吸取12.4ml 异丁醇用水稀释至1L )，用吸量管分别吸入两个不同的2-打兰(7.4毫升)的壳型小瓶中，一个标为&已知&，另一个标为未

Two 0.5-ml volumes of an isobutanol internal standard (10 mg/ml water; pipette 12.4 ml of isobutanol and dilute to 1 liter with water) are pipetted into two different 2-dram (7.4-ml) shell vials, one market "known."and the other "unknown."

将两份0.5毫升的异丁醇内标物(浓度为10mg/ml水，其配制法为：用吸量管吸取12.4ml 异丁醇用水稀释至1L )，用吸量管分别吸入两个不同的2-打兰(7.4毫升)的壳型小瓶中，一个标为&已知&，另一个标为&未知&。

The process includes the following steps: dissolving bromine in halogenated hydrocarbon, dropping the bromine solution into reactant system comprising pentabromo toluene, halogenated hydrocarbon, free radical initiator and hydrogen peroxide at 50-65 deg.c, and heating to 60-78 deg.c for reflux reaction until the reactant system becomes transparent; filtering the resultant to obtain solid product, washing with carbon tetrachloride and water separately and vacuum drying to obtain pentabromo benzyl bromide.

具体步骤为：将五溴甲苯、卤代烃、自由基引发剂和过氧化氢组成的反应体系加入到三颈瓶中，将0.07～0.1mol的溴溶于50ml卤代烃配成溶液，在50-65℃温度下滴加到反应体系中，滴加时间为50-70分钟，然后升温至60-78℃温度下回流反应，至反应体系逐渐变透明，且不再产生气泡时，将所得产物过滤，得到固体产物，分别用CCl 4 和水洗涤，真空干燥，即得到五溴苄基溴；其中，五溴甲苯与溴的摩尔比为1∶0.7-1∶1.0，溴与过氧化氢的摩尔比为1∶1.0-1∶1.4，自由基引发剂加入量为五溴甲苯重量的1-10％，卤代烃的加入量为反应体系体积的40％-100％，所用溶剂可以直接进行下一批反应，不需要更换溶剂或蒸馏提纯。

The packaging assembling line can automatically unscramble bottle, count and fill medicine, insert paper, screw cap, seal, label, print code and other function.

本联动线具有自动理瓶、计量灌装、理盖、旋盖、铝箔封口、贴标、打码及自动跟踪灌装量差异并自动调整灌装量参数等功能。

Through shake flask experiments,it was acquired that the best culture conditions:pH6.5,37℃,240rpm,40mL/300mL,and 2.5%of bacterium culture for 12h.

通过摇瓶发酵试验，确定其最佳培养条件为：摇床37℃，240rpm，发酵培养基的起始pH为6.5，接种量为2.5%，装液量为40mL/300mL，培养32h。

The optimal medium components were: sodium alginate 3 g/L,(NH4)2SO4 3 g/L, NaCl 20 g/L, KH2PO4 0.1 g/L, CaCl2 0.1 g/L; The optimal culture conditions were: 25 ml medium in 250 mL Erlenmeyer flask, inoculum's volume 3%, shaking speed of 150 r/min, initial pH 7.5, at 28°C for 24 h.

该菌株产酶的最佳培养基组成为：褐藻胶3 g/L、(NH4)2SO4 3 g/L、NaCl 20 g/L、KH2PO4 0.1 g/L、CaCl2 0.1 g/L；最佳培养条件为：250 mL三角烧瓶中装液量25 mL、接种量3%、摇瓶转速150 r/min、pH7.5、培养温度为28℃、培养时间为24 h。

With the single factor test and orthogonal test, the optimal culture media for HF3-04 strain producing agarase was decided as: agar 3‰, NH4NO31‰, Na2HPO4 0.5 mM, pH 8.0. The optimal fermentation conditions were inoculum size 3‰, 110ml medium in 250mL Erlenmeyer flask, rotation rate 150r∕min, culture time 48h,culture temperature 25℃.

通过正交试验确定其最佳培养基组成为琼胶3‰、硝酸铵1‰、磷酸氢二钠0.5mM、pH值8.0；该菌株的最佳培养条件为接种量1%、装液量为250ml三角瓶装入110ml发酵培养基、摇床转速150r∕min、培养温度25℃、培养时间48h。

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。