试液
- test solution;preparation;charge
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[test solution] 用于化学试验的溶液
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目的:通过对供试液经500r/min离心5min后,考察细菌、霉菌和酵母菌在上清液及沉淀中的分配情况及对药品微生物限度检查结果的影响。
Objective : To study the distribution of bacteria , fungi and yeasts in the supernatant and precipitation after pre-treated preparation was centrifuged at 500r / min for 5 minutes .
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用自制电化学中和器降低了试液中的pH值,使试液适于用离子色谱法测定。
The pH value of the solution was reduced by a home-made electrochemical neutralizer .
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青霉素G皮试液稳定性研究
Stability of Penicilin G Skin Allergy Test Solution
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试液进样量对ICP光源中稀土元素谱线的影响
Effect of Sample Uptake Rate on Spectral Line of Rare Earth Elements in ICP Source
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取一定量悬浮液,加入NaCl溶液以消除电离干扰,而配制成试液。
Test solutions were prepared by adding NaCl solution to appropriate amounts of the suspension to eliminate ionization interference .
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桂枝:采用硅胶G板,以石油醚(60-90℃)&醋酸乙酯(17:3)为展开剂,显色剂为二硝基苯肼乙醇试液。
Cinnamon twig was identified with petroleum ether ( 60-90 ) - ethyl acetate ( 17:3 ) as developer and dinitrophenylhydrazine ethanol solution as coloration using silica gel G.
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TAT皮试液溶度过高的原因分析与对策
Causes analysis of high solubility of TAT skin test solution and the countermeasures
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讨论了煅烧温度、空气流量、试液的pH值、光照时间与酸性黑染料光催化降解率的关系。
The effects of the calcination temperature , flow rate of air , pH of solution and illumination time on the photodegradation rate of acid black dyes were discussed .
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结果替卡西林钠-克拉维酸钾与pH较低的左氧氟沙星、阿米卡星配伍产生沉淀,加碱性试液pH升高后,溶液变澄清。
Results Precipitate happened in the compatibility of Ticarcillin / Clavulanate acid with low pH drugs such as Levofloxacin and Amikacin . The precipitate was dissolved by adding sodium hydroxide solution .
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结论通过对比认为15U/ml的破伤风抗毒素皮试液为最佳皮试液。
Conclusion Tetanus antitoxin skin test solution with concentration of 15u / ml is optimus .
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结论由于氨基己糖溶液多数不稳定,在各项操作中,应调节其盐酸盐水溶液的pH值小于7,中性试液只能在冰箱内短期保存。
Conclusion In general , hexosamine aqueous solution is unstable , so the solution in experiments should be pH < 7 and can be stored in refrigerator for a short time at pH 7.0 .
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本文提出用离子选择电极在同一份试液中连续测定NO3~-N和NH4~+N的新方法。
A new method for continuous determination of NO_3 ~ & N and NH_4 ~ + - N in the same sample by ion selective electrode is developed in this paper .
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研究了微波消解纺织品,采用原子吸收法测定样品消解试液中Cd、Co、Cr、Cu、Ni、Pb重金属元素。
Microwave digesting textiles were studied . The test liquors were determined with AAS method for the heavy metal elements in samples , such as Cd , Co , Cr , Cu , Ni , Pb .
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方法将乳酸环丙沙星分别与易善复、苦黄注射液按一定比例混合制成不同浓度的配伍试液,观察外观、测定pH值、紫外测定、红外图谱扫描。
Methods Mix the Ciprofloxacin with the Essentiale and the Ku huang based on certain proportion to make injection liquid mixture with different density . Then observe the external appearance , measure the PH value , UV-spectrophotometry analysis , infrared analysis .
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当试液的pH值在1~1.5之间时,邻菲绕啉的浓度为0.2%时适合测定钾、钠、钙、镁、铜、锰、铁和锌等8种元素。
Illustrated by analysis of tree leaves , in a solution of pH from 1 to 1 5,0 2 % o phenanthroline hydrate can be used to determine 8 metallic elements : K Na Ca Cu Mg Mn Fe and Zn .
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改良法用0.9%氯化钠注射液3.66、7.33ml稀释80万U、160万U青霉素钠,并配成青霉素皮试液。
For modified technique , 3 . 66 ml and 7 . 33 ml of 0 . 9 % sodium chloride injection were used for the dilution of 800 000 U and 1 600 000 U penicillin .
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采用考马斯亮蓝G250检测17种变应原的蛋白质含量,与重量/体积法对照,发现按后者配制的变应原皮试液蛋白质含量悬殊。
Coomassie Brilliant Blue method was adopted to detect the protein content of seventeen kinds of allergens .
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4℃下青霉素皮试液贮存期为5d,链霉素皮试液贮存期为179d。
In addition , at 4 ℃, the storage time of the liquid skin test preparations of penicillin and streptomycin was 5 days and 179 days respectively .
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因酸性定影液中存在大量NH4~+,要与甲醛反应生成质子及质子化的六次甲基四胺,使试液酸度增大,S2O3~(2-)将部分分解。
Because of the reaction of HCHO and NH_4 ~ + , the hydrogen ions will be liberated to increase the acidity of the solution and partially decompose the S_2O_3 ~ ( 2 - ) ion .
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研究了ICP光源中试液进样量对稀土元素谱线强度、背景强度,谱线强度测量的相对标准偏差,元素检出限,发光效率及试样相对利用率的影响。
Effects of sample uptake rate on spectral line intensities , background intensities , relative standard deviations of line to background ratio , detection limits , signal emitted rate and sample relative utilization rate were studied .
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试液的紫外吸收测定波长为266nm。
UV absorption peak of the test solution was determined at 266 nm .
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供试液的IC50(O·2的清除率为50%时,供试液中黑米的含量)值与黄酮和种皮色素含量呈显著和极显著负相关。
The IC50 ( black rice content in the extract when the O · 2 scavening rate is 50 % ) was negatively correlated with the flavonoids or pigment contents significantly .
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烘焙食品试样经灰化处理后,用APDCDDTCMIBK体系萃取富集试液中的铅,利用空气乙炔火焰原子吸收法测定烘焙食品样品中铅的含量。
Trace lead in baked food is determined by air-acetylene flame atomic absorption spectrometry ( FAAS ) with APDC-DDTC-MIBK as the extraction and preconcentration system after cineration process .
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介绍了破伤风抗毒素(TAT)皮试液的配制方法、剂量、浓度及皮试部位的选择、对皮试结果判定、注射方法及临床实践中使用TAT注意事项。
It introduced the influence of the preparing method , dose , concentration of tetanus antitoxin skin test fluid and selecting of location skin test on assessment of skin test result . It explained announcements for using TAT in clinical practice .
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另一份试液在pH1.0~1.5使锑离子水解与干扰离子分离,测定总锑量,用差减法求出Sb(Ⅴ)含量。
The other is used for the determination of total Sb amount by selective hydrolysis of Sb at pH 1.0-1.5 to separate Sb from foreign ions . The amount of Sb (ⅴ) is calculated by deduction .
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以锦鲤鱼(BrocardedCarp)为试验生物,将其暴露于3种化合物不同浓度的试液中,通过鱼类的死亡率求出96h半数致死浓度(LC50)。
In the test , Brocarded Carp was chosen as test animal and was exposed to different doses of the three nitrobenzene compounds , and 96 h LC50 was calculated according to lethal rates of the fish .
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报告了以二乙基氨荒酸铅的氯仿溶液与试液中的Cu2+进行交换,将Cu(DDTC)2萃取进入有机相,然后用分光光度法来测定微量铜。
This paper recommends that Cu 2 + in test solution can be exchanged with chloroform solution of diethyldithiocarbamate Pb 2 + . After being extracted , Cu ( DDTC ) 2 enters into organic phase and micro-copper ( Cu ) can be determinated by spectrophotometric methods .
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将微波消解法与传统的湿法消解法处理膨化食品进行比较,用APDC-DDTC-MIBK体系萃取富集试液中的铅,利用空气-乙炔火焰原子吸收法测定其含量。
A comparison was made between microwave digestion and wet digestion methods for the determination of Pb in bulgy food with FAAS . And being concentrated by APDC-DDTC-MIBK system extraction .
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采用RangeKuta法对模型进行计算,处理能力6kt/a的中试液固磁稳定床反应器的模拟结果与实验结果的平均相对偏差为13.2%。
The model was calculated with Range-Kuta method . A pilot plant of magnetically stabilized bed reactor with the capacity of ( 6 kt / a ) was simulated , and the simulative results fitted the experimental results well with a mean relative deviation of 13.2 % .
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建立了全谱直读等离子体光学发射光谱(ICP-OES)法测定饮用天然矿泉水中偏硅酸(H2SiO3)的新方法,优选了试液介质和仪器条件。
A new method of determining metasilicic acid ( H2SiO3 ) in natural mineral water for drinking by ICP-OES is established . The medium of solution and measurement condition are optimized .