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Accelerated solvent extraction and Soxhlet extraction were used to extract capparis spinosa seed oil with he-xane and ethyl ether.

采用加速溶剂萃取及索氏提取法,用正己烷和乙醚为提取剂从野西瓜种子中提取油脂,经浓H2SO4催化,甲醇甲酯化处理后,以气相色谱-质谱联用技术鉴定出野西瓜种子中的脂肪酸主要组成为:油酸、亚油酸、硬脂酸等,其中不饱和脂肪酸总量占91.4%,主要成分油酸占73.3%。

To induce chronic liver injury and followed by histidine or carnosine treatment for three weeks, in which histidine or carnosine, each agent at 0.5, 1 and 2 gram per liter, was added to the drinking water.

用70%酒精经口诱发老鼠慢性肝损伤4周后,分别以每公升饮用水添加0.5、1和2克的组胺酸或肌处理3周后进行实验。

The main function of sucrose is to maintain normal respiration, so it can only be used to join the preservative, and make a good effect in maintaining the water balance of Dianthus Caryophyllus when dealing with 0.01% Phytic Acid +2% S +200 mg/L8-HQC solution; Finally, in the mensuration of Dianthus Caryophyllus fresh weight change, no matter using which the vase planting solution, the fresh weight of Dianthus Caryophyllus increases in the initial phase and then gradually decreases.

结果表明:在花径变化的测定中,经0.01%植酸+2%S+200mg/L8-HQC溶液处理的香石竹在保鲜期间得到最好的保鲜效果,切花的生长状况达到最佳状态;在水分平衡的测定中,结果表明蔗糖溶液对香石竹的水分平衡的保持有负作用,蔗糖的作用主要作用是维持正常的呼吸作用,因此它只能用来加入到保鲜剂中,处理0.01%植酸+2%S+200mg/L8-HQC在保持切花的水分平衡上起到较好的效果;最后在香石竹的鲜重变化测定中,无论什么瓶插液,香石竹切花的鲜重在初期阶段增加,然后逐渐减少,水分的吸收与丧失会有波动,但总趋势是失水量大于吸水量。

Tray craftwork takes technical wood as main material, the natural and rare bark of "cateye" lines as surface with beautiful patterns engraved by laser engraving machine at one time, and the natural Sapelli bark for bottom with waterproof varnish on both front and back side, which sets off the "cateye bark" and the beautiful pattern, solid and lifelike.

工艺托盘采用的是"高新技术产品"科技木为主要材料,选用仿真天然珍贵树种"猫眼"纹理制成的木皮做为托盘表面,美丽的图案经进口镭射雕刻机一次性雕刻成功,底面用天然沙比利木皮做成,正反两面都喷有防水亮漆,使得表面的"猫眼"木皮和精美的图案更加鲜艳,更加亮丽,纹理的立体感更强,栩栩如生。

Octachlorodipropyl ether was extracted from tea samples using n-hexane-acetone(22∶3,V/V),purified with celite 545-sulfuric acid(1g-0.4mL) using hexane as an eluent.

茶叶样品用正己烷-丙酮(22∶3,V/V)提取,经硅藻土545-浓硫酸(1g+0.4mL)净化,以正己烷洗脱,GC-ECD检测,外标法定量。

Bone marrow was drawn from rabbit by density gradient centrifugate in 70% Percoll fluid, the rate of cell survival was evaluated with trypan blue staining;The cells have been induced,differentiated and transfered of culture in vitro for five weeks; MSCs was seed onto BMG and continued to be cultured six weeks in vitro,then the compound was carried out to observe collagen by Masson staining.

抽取兔骨髓,用70% Percoll液,经密度梯度离心法分离MSCs,台盼蓝染色观察细胞存活率;诱导分化,传代,体外培养5周;复合BMG,继续体外培养6周,Masson染色观察胶原合成情况。

After ultrasonic extraction, centrifugence and concentration, the samples were finally determined by high-performance liquid chromatography.

采集的土壤样品经超声萃取、离心、浓缩以后用高效液相色谱测定其含量;灭螺试验分别计算3 d、7 d钉螺死亡率。

Partial sequences of chalcone synthase gene exon 2 were amplified by PCR method from genomic DNA of 10 species of the basal eudicots. After cloning and sequencing, 26 seqences were obtained.

用PCR方法从目前极少被报道的真双子叶基部类群10种植物的总DNA中扩增出CHS基因外显子2的部分序列进行分析,经克隆后测序,共得到26个不同的片段。

The diameter is 15.5 centimetres, 8.5 centimetre high, is it make various kinds of flowers line kind to carve gold and silver thin slice , paste in painting childing smooth of polishing with paint, after being dry, overall Xiu several of celluloid paint is it show the honeysuckle line to grind and then, make pattern and paint bottom reach same Pingdu , push away light become a exquisite one flat to take off the lacquer ware in addition.

直径15.5厘米,高8.5厘米,将金银薄片刻制成各种花卉纹样,用漆粘贴在打磨光滑的漆胎上,待干燥后,全面髹透明漆数层再经研磨显出金银花纹,使花纹与漆底达到同样平度,再加推光则成为精美的平脱漆器。

Preparation of the cathode includes:shaping under the press of 40Mpa, sintering at 550℃for 1 hour and at 900℃for 8 hours and threading with molybdenum bar; Considering the literatures we choose CaCl2 as salt for preparation titanium. Pretreatment of salt is for 1 hour at 100℃and for 2 hours at 300℃. Partial pressure of oxygen which need lower than 5.11×10-7Pa to reduct titanium oxides and hygroscopic property of salt need a sealed equipment to electrolyse. And finally successfully designed a satisfied one and the results show that the equipment can be satisfied the requirment of the experiment. Flow of the inert gas is 1.5L/min, the voltage is 2.8 V, temperature is 850℃and time is 2 hours during pre-electrolysis. Flow of the inert gas is 0.2L/min, the voltage is 3.1 V, temperature is 900℃and time changes with the mass of TiO2 during electrolysis, namely the greater need the longer time; To eliminate influence of salt and other impurities, the products need to wash with distilled water and dilute chlorhydric acid , then wash with dilute hydrochloric acid under supersonic wave assistant. Finally, electrometical properties of the electrolysis of TiO2 is researched by cyclic voltammetry and chronoamperometry, and results show that there are two main reodox steps, namely from TiO2 to TiO and from TiO to Ti.

阴极制备主要包括40MPa压力下模压成型、两段式烧结(1小时内升至550℃保温1小时,再1小时升温至900℃保温8小时)及烧结后TiO2块打孔用钼棒串接三个主要环节;实验中选用CaCl2作为电解熔盐,并对其进行预处理(100℃,保温1小时; 300℃,保温2小时);经热力学计算,还原钛氧化物的氧分压至少要低于5.11×10-7Pa,结合电解过程中所用熔盐CaCl2有极强的吸水性的特点,电解装置应有较高的密封性,自行设计了一套密封性可靠的电解装置,便于实验过程中熔盐预处理和氧分压的控制;通过干燥处理预电解过程中Ar流量大约为1.5L/min、电压为2.8 V、温度为850℃、时间为2小时,电解过程中Ar流量大约为0.2L/min、电压为3.1V、温度为900℃,实验结果表明电解时间与TiO2质量密切相关,质量越大需要电解的时间越长;通过自来水冲洗—稀盐酸浸泡、洗涤—在超声波辅助作用下稀盐酸洗涤,可减少熔盐及其它杂质对电解产物检测结果的影响;最后,通过循环伏安法、计时电流法对电解机理的研究,确定电解还原TiO2制备金属钛主要经历了TiO2-TiO-Ti的过程。

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