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气相色谱法
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  gas chromatography
    Determination of 20 Organophosphorus Pesticide Residues in Fruits and Vegetables by Capillary Gas Chromatography
    毛细管气相色谱法测定果蔬中20种有机磷农药残留量
短句来源
    The effects of the addition of Ca2+,Na+,K+ during esterification on the production of ethyl acetate and ethyl lactate were studied by gas chromatography.
    采用气相色谱法研究了大曲酯化过程中添加Ca2+、Na+、K+对乙酸乙酯和乳酸乙酯酯化生成的影响。
短句来源
    Methods:Column chromatography purification technology and capillary gas chromatography were applied to the determination of five pyrethroid pesticide multi-residues in leek samples.
    方法:应用柱层析净化技术和毛细管气相色谱法,并采取程序升温模式和不分流进样方式在μ-ECD检测器上同时测定韭菜样品中5种拟除虫菊酯类农药多残留组分。
短句来源
    Determination of free fatty acids in beer by gas chromatography
    气相色谱法测定啤酒中的游离脂肪酸
短句来源
    Determination of FFAs in Sausages by Capillary Gas Chromatography with TMAH as Catalyst
    用氢氧化四甲铵作催化剂的毛细管气相色谱法测定香肠中游离脂肪酸
短句来源
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  gc
    Determination of Residue of Organochloride-containing Pesticides in Fruits by GC with Hp-50+530μm Column
    HP-50+大口径毛细管气相色谱法测定水果中多种有机氯农药残留量
短句来源
    Determination of EPA and DHA in Milk Powder by GC
    气相色谱法测定奶粉中的EPA和DHA
短句来源
    The stabilizers including gum acacia, β-CD and HP-β-CD were added in Fen Liquor respectively and then the esters content in the liquor was determined by GC in different storage time.
    利用气相色谱法测定了添加有稳定剂阿拉伯胶、β-CD和HP-β-CD的汾酒在不同贮存时间后的酯类含量。
短句来源
    A method for the determination of α-Lionlenic acid in milk powder was developed using capillary chromatography (GC). The calibration curve(A = 126889C +150.63)was found to be linear over the range of 0.550~91.0ng and the detection limit is 0.33ng (S/N=3). The average recovery is 98.4%.
    本文介绍了一种用气相色谱法测定乳品中α-亚麻酸的分析方法,方法简便、快速,同时可以进行亚油酸的测定,方法的检出限为0.33ng,线性范围是0.550~91.0ng,回归方程是A=126889C+150.63,加标回收率在90.3~106.5%。
短句来源
    The T2 toxin concentration detected with GC in grain collected from Harbin city markets
    哈尔滨市市售粮食T-2毒素污染水平的气相色谱法检测报告
短句来源
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  gas chromatograph
    Determination of 23 Organochlorine and Pyrethroid Pesticide Residues in Cucumber by Solid-Phase Extraction and Capillary Gas Chromatograph
    固相萃取-毛细管气相色谱法同时测定黄瓜中23种有机氯和拟除虫菊酯类农药残留量
短句来源
    The high fatty acid in milk that had been methylated was analyzed by gas chromatograph methed. The results showedthat long chain fatty asid Consisting of mcre than 12 carbons was in very good linear range,whereas the Correlation coefficientswas 0.9991.The recovery rate was 89.0%~109%.
    牛奶中高级脂肪酸经甲酯化后,利用气相色谱法测定,结果表明十二碳以上的长链脂肪酸的线性范围好,相关系数为r=0.9991以上,回收率在89.0%~109%之间。
短句来源
    Determination of Benzoyl Peroxide as brightener reagent in wheat flour by capillary column Gas chromatograph method
    毛细管气相色谱法测定面粉中增白剂BPO的含量
短句来源
    Determination of Ketamine Hydrochloric in Drink by Gas Chromatograph
    气相色谱法检测饮料中的盐酸氯胺酮
短句来源
    The solvent residual amount of extracted plant oil in Anhui province has been supervised by using gas chromatograph for three years,and the results show that the whole desolventizing technique and management level of oils and fats trade in the province are good,but the average residual amount of solvent is going up year by year. Therefore,the reason for causing this undesirable target has been analyzed.
    用气相色谱法对安徽省浸出植物油的溶剂残留量进行了连续3年的监测,结果表明安徽省油脂行业的整体脱溶技术水平和管理水平比较高,但溶剂的平均残留量逐年上升,分析了造成该项指标不合格的原因
短句来源
  “气相色谱法”译为未确定词的双语例句
    Chemical Reaction and Chromatographic Method for the Determination of Dimehypo Residues in Vegetables
    化学反应-气相色谱法测定蔬菜中杀虫双残留量
短句来源
    Gas Chromatographic Determination of Volatile Sulfur Compounds in Chinese Rapeseed Oil
    气相色谱法测定中国菜油中的挥发性硫化合物
短句来源
    Analysis of DHA EPA and linolenic acid contents in egg by APGC
    毛细管气相色谱法分析鸡蛋中DHA、EPA和亚麻酸的含量
短句来源
    Fast Quantitative Determination of Fatty Acid in Milk
    气相色谱法快速测定牛奶中脂肪酸
短句来源
    Gas chromatographic determination of captan residues in fruits and vegetable
    气相色谱法测定水果蔬菜中克菌丹残留
短句来源
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  gas chromatography
Acetone solution-casting films of poly(methylmethacrylate) were analyzed by differential scanning calorimetry and pyrolysis gas chromatography-mass spectroscopy under natural evaporation and ultrasonic vibration, respectively.
      
Determining the relative age of blue ballpoint ink by gas chromatography
      
The content of the volatile components in blue ballpoint pen ink were determined by gas chromatography (GC).
      
Compared with the results obtained by GC/qMS only, the analytical results obtained by these hyphenated methods of gas chromatography are more credible.
      
The volatile oil, the fraction of petroleum ether: EtOAc = 20:1 (V/V) on Si gel chromatography, was also quantitatively analyzed by gas chromatography mass spectrometry (GC-MS).
      
更多          
  gc
A successful interpretation of the complex relationship between GC RIs of methyalkanes and the chemical structure is achieved using the QSPR method.
      
The content of the volatile components in blue ballpoint pen ink were determined by gas chromatography (GC).
      
Based on the mass spectra search function of GC/qMS with the aid of the discriminability of the geometrical isomer by GC/FTIR and the ability to determine the accurate mass charge ratio (m/z) by GC/oaTOFMS, 68 GC eluants were identified successfully.
      
Compared with the results obtained by GC/qMS only, the analytical results obtained by these hyphenated methods of gas chromatography are more credible.
      
The volatile oil, the fraction of petroleum ether: EtOAc = 20:1 (V/V) on Si gel chromatography, was also quantitatively analyzed by gas chromatography mass spectrometry (GC-MS).
      
更多          
  gas chromatograph
Detection of geosmin and 2-methylisoborneol by liquid-liquid extraction-gas chromatograph mass spectrum (LLE-GCMS) and solid pha
      
LC-18 column was employed in solid phase extraction (SPE), 1.0 mL of hexane was adopted in liquid-liquid extraction (LLE), and the extracts were analyzed by gas chromatograph mass spectrum (GCMS) in selected ion mode.
      
Rapid Determination of Explosives and Narcotics Using a Multicapillary-Column Gas Chromatograph and an Ion-Mobility Spectrometer
      
The kinetics of the buildup of carbonaceous products (coke) was investigated in situ during the catalytic reaction in a thermal analyzer coupled to a mass spectrometer and a gas chromatograph (TA-MS-GC).
      
Predictinga, c indices in reversed-phase high-performance liquid chromatography (RP-HPLC) from Kováts index in gas chromatograph
      
更多          


Trifluoracetic acid (TFA) was applied for the hydrolysis of milled sugarcane skin lignin (MSL) and enzymatically isolated sugarcane skin lignin (ESL). The component of carbohydrate remained in both MSL and ESL was determined through aldononitrile derivatives by gas chroma-tography. The time of preparing aldononitrile derivatives was much less than that published before[l5], and the accuracy of results is higher than that of the original standard by preacetylated inositol and by using integrator connected with...

Trifluoracetic acid (TFA) was applied for the hydrolysis of milled sugarcane skin lignin (MSL) and enzymatically isolated sugarcane skin lignin (ESL). The component of carbohydrate remained in both MSL and ESL was determined through aldononitrile derivatives by gas chroma-tography. The time of preparing aldononitrile derivatives was much less than that published before[l5], and the accuracy of results is higher than that of the original standard by preacetylated inositol and by using integrator connected with gas chromatograph. The response factors of arabinose, xylose, mannose, glucose and galactose are determined. The recoveries of the monosacc-harides in the analysis are all over 90%.

本文应用三氟乙酸水解磨甘蔗本素及磨甘蔗酶解本素,用糖腈乙酰酯衍生物气相色谱法对木素残留的碳水化合物组成进行了测定和研究。通过改进用肌醇乙酰酯为内标,气相色谱联用计算积分机,测定了鼠李糖、阿拉伯糖、木糖、甘露糖、葡萄糖、半乳糖等的校正因子,并缩短了衍生物制备时间和提高了定量分析的准确性。测得各单糖的回收率均在90%以上。

A colorimetric method is described for the determination of micro-nitrile compounds in the grains. The method is based on measurment of color formed when the nitrile compound and methylene blue mixed with 0.3% sulfur-dichloro ethane, read absorbance of reaction product at 660nm. Recovery experiment were made in the grains.

微量氰化物的测定,常用的方法有比色法;容量法;离子选择电极法及气相色谱法等多种方法。容量法:离子选择电极法及气相色谱法因灵敏度低或需要特殊仪器,所以目前微量氰化物的定量还普遍采用比色法。粮食中氰化物的定量,国家的标准方法仍采用吡啶盐酸联苯胺比色法。由于吡啶毒性大,并且具有分析人员不能接受的恶臭,联苯胺又系致癌物质。所以为了取代该法,我们参照康、智三等报道将氰化物和亚甲篮混合溶液加入硫磺二氯乙烷溶液振荡混合时,氰化物与硫磺反应定量地生成硫氰酸根离子后和亚甲篮以离子对的形式被二氯乙烷溶液提取。其有机相在660毫微米波长下测定吸光度而对氰化物进行定量的方法,用于粮食中氰化物的定量获得了满意的结果,故介绍如下。

Determination the contant of n-hexanol which is one of predominatly beany constituents in soybean by rapid and direct gas-chromatographic method was described. The analytical paramaters in this method were studied. Finally, the optimum process of this method and the condition of operation for determination of n-hexanel level were decided.

本文采用快速直接气相色谱法测定了大豆主要致腥成分之一——正己醛的含量,对该法的分析参数进行了探讨。最后优化出测定正已醛含最的最佳分析程序和操作条件。

 
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