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气相色谱法
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  gas chromatography
    Gas chromatography is applied to determination eight types of organ chlorine pesticide residues in the soil of tea garden. The recoveries were in the range of 76.5%~105.4%. The relative standard deviations were 3.82%~10.97% and the limit of detection was 0.0001~0.001mg/kg.
    采用气相色谱法检测茶园土壤中8种有机氯农药组分的残留量,平均回收率在76.5%~105.4%之间,相对标准偏差在3.82%~10.97%之间,检出限为0.0001~0.001mg/kg。
短句来源
    Study on the Separation of Stereoisomers of Pesticide Products Using Chiral Capillary Gas Chromatography
    手性毛细管气相色谱法分离农药光学异构体的研究
短句来源
    Determination of BHC、DDT、Dicofol Residue in Tea by Capillary Gas Chromatography
    毛细管气相色谱法测定茶叶中六六六、DDT、三氯杀螨醇的残留
短句来源
    Analysis of 36% Trichlorfon-triazophos EC by GAS Chromatography
    36%敌·三唑乳油的气相色谱法测定
短句来源
    Determination of a 7% d-cyphenothrin insecticidal aerosol by gas chromatography (GC)
    7%右旋苯氰菊酯杀虫烟雾剂的气相色谱法测定
短句来源
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  gc
    Evaluation of uncertainty in the determination of Chlorpyrifos 40% EC by GC
    气相色谱法测定40%毒死蜱乳油中有效成分含量的不确定度评估
短句来源
    Determination of a 7% d-cyphenothrin insecticidal aerosol by gas chromatography (GC)
    7%右旋苯氰菊酯杀虫烟雾剂的气相色谱法测定
短句来源
    Determination of molinate and simetryn in EC mixture by GC using glass column (1m×3mm)packed with 5% OV-17/Chromosorb W-HP 60~80 mesh and FID detector,using n-eicosane as internal standard,the method is simple,rapid and accurate.
    本文采用气相色谱法,用1m×3mm的玻璃色谱柱,内装5%OV-17/ChromosorbW-HP(60-80目)固定相,正二十烷作内标物,测定禾·西乳油中有效成分的含量。
短句来源
    O,O′-Diethyl-S-propyl-phosphorodithioate was analyzed by GC. This method is convenient, rapid, accurate and practical. The test results showed that the standard deviation, variation coefficient and recovery rate is 0.38, 0.42%, and 99.2%~100.2% respectively.
    用气相色谱法对丙硫酯进行分析 ,该方法简单、快速、准确、实用 ,标准偏差为 0 .38,变异系数为 0 .42 % ,回收率为 99.2 %~ 10 0 .2 %。
短句来源
    A quantitative analytical method for20%pyridaben and isocarbophos EC by GC was introduced,using5%XE-60/Chromosorb W/AW-DMCS(154~180 μ m)glass column and FID detec - tor.
    本文叙述了采用气相色谱法即以5%XE-60/ChromosorbW/AW-DMCS(154~180μm)玻璃柱和氢火焰离子化检测分离测定20%哒·水胺乳油中的哒螨灵和水胺硫磷的含量。
短句来源
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  gas chromatograph
    The residues of organic phosphorus pesticide were determined by large bore capillary gas chromatograph in 167 samples of 14 kinds of vegetables in Xi'an region.
    用大口径毛细管气相色谱法跟踪监测了西安地区夏秋两季14种蔬菜167个样品中有机磷农药残留量。
短句来源
    In order to improve effect of prevention and cure for Cyhalthrin, and research for new jixings, inclusion compound of Cyhalthrin·β_cyclodextrin was prepared by minds of liquid phase method, stability in liquid examined , and its forming affirmed by using different thermal analysis and gas chromatograph, the inclusion ratio to being 1∶1 determined through optical activity.
    为了进一步提高三氟氯氰菊酯农药的防治效果 ,寻找适宜的农药新剂型 ,我们用液相法制备了三氟氯氰菊酯·β_环糊精包合物 ,并以水为基质进行了稳定性观察 ,同时又以差热分析法和气相色谱法确认了包合物的形成 ,以旋光度法证明两者间的包合比。
短句来源
    Inclusion compound of cyhalthrin·β-cyclodextrin was prepared by minds of liquid phase method, and affirmed by using different thermal analysis and gas chromatograph,it was found to be 1∶1 through optical activity, its content was determined with divided and gas chromatograph.
    用液相法制备了氯氟氰菊酯·β-环糊精包合物 ,差热分析法和气相色谱法确认包合物的形成 ,旋光度法证明两者间仅能形成 1∶1包合物 ,解络与气相色谱联用测试包合态氯氟氰菊酯的含量
短句来源
  “气相色谱法”译为未确定词的双语例句
    The DB-17 column,15m 0.540mm i.d. , was used for chromatographic separation of this pesticide. The Limit of detection of this method was 1.4 10-10g.
    样品以丙酮提取,二氯甲烷萃取,中性氧化铝加酸洗活性炭混合柱净化,采用DB-17(15m×0.540mm×1.00μm)毛细管柱,气相色谱法FTD检测定量,最小检知量为1.4×10~(-10)g。
短句来源
    Measurement is accomplished by gas-liquid chromatography using flame photometric detection. Recovery is 89% ̄106%,Detection limits of Isofenphos and Optunal are 3. 8-×10-11g·s-1 and 4.0×10-11g·s-1respectively.
    用气相色谱法火焰光度检测器检测,回收率达89%~106%,检测限水胺硫磷为4.0×10-11g·s-1,乙基异柳磷为3.8×10-11g·s-1。
短句来源
    A method was introduced for the determination of the acetochlor WP with GC-FID on 3%ov-17/101 HMDS(60~80 mesh)as fixed phase.
    采用气相色谱法,选用3%ov-17/101硅烷化白色担体(60~80目)作为固定相,以氢火焰离子化检测器测定乙草胺可湿性粉剂含量。
短句来源
    The method to detect the content of Bassa,propylene chrysanthemum ester and methyl ether chrysanthemum ester in the mosquito coil with gas phase chromatography is reported. Dibutyl phthalate is used for the inner standard matter in this method. The rate of return is 97. 9%, 97. 6% and 97. 5%,and the variability coefficient is 0. 90, 1. 61 and 1. 80,respectively.
    用气相色谱法测定蚊香中的仲丁威、丙烯菊酯的含量,色谱柱5%,SE—303mm(i d)*2mm,用邻苯二甲酸二丁酯为内标物,方法回收率分别为 97. 9%,97. 6%和 97. 5%,变异系数为 0. 90,1. 61和1.80%。
短句来源
    The surveying indicated thatthe recoveries and coefficients of variation of parathion-methyl and phoxim were 98.83%,0. 80%and 100.34%,0. 89% with HPLC,99.75%, 1.14% and 98.76%, 1.06% with WBCC-GC,100.54%, 2.16% and 101.27%, 1.30% with TLC-bromination respectively.
    大口径毛细管往气相色谱法的方法回收率及变异系数:甲基对硫磷99.75%、1.14%,辛硫磷98.76%、1.06%。 薄层溴化法的方法回收率及变异系数:甲基对硫磷100.54%、2.16%,辛硫磷101.27%、1.30%。
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).
      
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  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
      
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Tubers of five potato cultivars with or without R genes[Aquila(Rl),Kennebec (R1),Epoka (R3R4),Katahdin (r) & purple Yam (r)]were inoculated with three races of Phytophthora infestans (race O,1.4&3.4) at seven different stages of tuber development and storage (imme-diately after harvesting 1 month before maturity without storage,and O,1,2,3,4,5 months stored at 4-6℃ after harvest of crop at maturity).The reaction types and rishitin accumulation were then examined.Reac-tion types of potato are consistent with...

Tubers of five potato cultivars with or without R genes[Aquila(Rl),Kennebec (R1),Epoka (R3R4),Katahdin (r) & purple Yam (r)]were inoculated with three races of Phytophthora infestans (race O,1.4&3.4) at seven different stages of tuber development and storage (imme-diately after harvesting 1 month before maturity without storage,and O,1,2,3,4,5 months stored at 4-6℃ after harvest of crop at maturity).The reaction types and rishitin accumulation were then examined.Reac-tion types of potato are consistent with appropriate races and remainstable both in unstored conditions and after stored periods of differentlengths.Little or no rishitin accumulates in unstored tubers even in in-compatible reactions.The level or rishitin accumulation in incompatiblereactions is higher than that in compatible reactions only in Rl genecultivars after 1 month's storage.A high concentration of rishitin is alsodetected even in r gene cultivars,which are compatible with any race.No close and direct correlation between rishitin accumulation and incom-patibility could be obtained.

对5种含有和不含R-基因的马铃薯品种的块茎[阿奎拉(R_1),抗疫白(R_1),疫不加(R_3R_4).卡塔丁(r)及紫山药(r)]在不同块茎发育期和贮藏期(成熟前1个月不经贮藏,成熟期收获后在4—6℃下贮藏0,1,2,3,4,5个月)用3种晚疫病菌小种(小种0,1.4和3.4)接种,检查块茎的反应型和用气相色谱法测日齐素的积累量。结果是马铃薯各品种与其对应小种的反应型保持相当的稳定,不因未经贮藏或经不同时期贮藏而改变。然而日齐素的含量,在未经贮藏的块茎即使是不亲和反应也没有或很少有日齐素积累。只有在1个月的贮藏以后,含R_1基因的品种不亲和反应组合的日齐素含量比亲和反应组合为高。可是,在对所有小种都亲和的r基因品种也测到很高的日齐素浓度,如紫山药/小种0的日齐素高达134微克/克鲜重,而抗疫白/小种0也只达到107微克/克鲜重。所以未能得出日齐素的积累和不亲和性有密切的直接相关的结论。

The residue behavior of cypermethrin on cabbage was investigatedwith gas chromatogaphy by using an electron capture detector. Duringthe growing season of the cabbage, when the plants were sprayedwith 50ppm and 90ppm of cypermethrin, the degradation rate ofpesticide was observed to be very slow, especially in the late stageof spraying. The half-life of cypermethrin on the leaf surface was6.0, 7.8 and 8.3 days, respectively. Residues found in cabbage 30 daysafter the treatment were about 0.1-0.3ppm. The experiment...

The residue behavior of cypermethrin on cabbage was investigatedwith gas chromatogaphy by using an electron capture detector. Duringthe growing season of the cabbage, when the plants were sprayedwith 50ppm and 90ppm of cypermethrin, the degradation rate ofpesticide was observed to be very slow, especially in the late stageof spraying. The half-life of cypermethrin on the leaf surface was6.0, 7.8 and 8.3 days, respectively. Residues found in cabbage 30 daysafter the treatment were about 0.1-0.3ppm. The experiment showedthat the cypermethrin residue was only on the surface of the plantbecause of it's comparatively low penetating ability. No pesticideresidues were detected on the edibal part of cabbage with 1-4applications of the recommended concentration (25ppm) and theresidues of cypermethrin were found to be trace only with 50ppmtreatment and the residues on the unedibal part of cabbage were foundto be 0.201 4-O.4929ppm.

气相色譜法氚-鈧源电子捕获检测器研究了氯氰菊酯在甘藍上的残留动态。甘藍生长中期喷施50ppm及90ppm氯氰菊酯,药剂在甘藍上消解緩慢,半衰期分別为6.0天、7.8天及8.3天,施药后一个月甘藍上仍残留約0.1~0.3ppm。氯氰菊酯的穿透性能很弱,只残留于施到药液的甘藍叶片表面,常用施药浓度25ppm下施药1~4次,施药后7天甘藍食用的结球部分均未检出,当施药浓度达50ppm时结球部分也仅有痕量残留,在非食用的外叶上残留量为0.2014~0.4929ppm。

A gas—liquid chromatographic method is described for residues of a syn- thetic pyrethroid,fenvalerate on cabbage and tomatoes,the plant material is extracted with petraleum ether-acetone(1+1)and subsequenthy cleand up on Florisil with benzene—ethyl acetate(9.5+0.5)eluting solvent,gas—liquid chromatographic analysis was performed on a 0.8m×3mm glass column contain- ing 3% or-101 on 80—100 mesh gas-chrom Q,with triliom clectron capture detoetion,Routine Fenvalerate residue monitoring data are presented,the minmum...

A gas—liquid chromatographic method is described for residues of a syn- thetic pyrethroid,fenvalerate on cabbage and tomatoes,the plant material is extracted with petraleum ether-acetone(1+1)and subsequenthy cleand up on Florisil with benzene—ethyl acetate(9.5+0.5)eluting solvent,gas—liquid chromatographic analysis was performed on a 0.8m×3mm glass column contain- ing 3% or-101 on 80—100 mesh gas-chrom Q,with triliom clectron capture detoetion,Routine Fenvalerate residue monitoring data are presented,the minmum dertectable concentration is about 0.87×10~(-11)gram. And reseach bring up Fenvalerate in security use standard on cabbage and tomato,when Fenvalerate at concentration of 40ppm was sprayed during the growing stage of the cabbage plant,the dissipation of the pesticide was 90% on the 11 day,the half-life of Fenvalerate on the cabbage was about 2.9— 3.7 days in the field,the growth dilution of the cabbage decreased the le- red of pesticide residue in the cabbage,with 2—3 applicalions of Fenvale- rate 20EC at 25—40 ml/mou,at 5 day interval,the cabbage no residue was detected(residus being below 1.0ppm). In summer,when Fenvalerate at concentration of 60 ppm was sprayed during the growing stage of the tomato plant,the dissiption of the pesticide was 80% on the 2.3 day.At maturity,2applications(at 3day interal)of Fenvalerate 20EC 30—40ml/mou,the residue on the tomato fruit was found to be below 0.2ppm.

气相色谱法检测拟除虫菊酯类农药——氰戊菊酶在甘兰及蕃茄上的残留。样品用石油醚、丙酮(1+1)提取,苯—乙酸乙酯通过弗罗里硅土淋洗净化。色谱分析用0.8m×3mm玻璃柱填充涂有3%ov—101的 Gas Chrom Q 担体(80—100目)用电子捕获检测器,一般可检出氰戊菊酯的最小检出量为0.87×10~(-11)克。同时研究提出氰戊菊酯在甘兰和番茄上的安全使用方法。在甘兰生长期喷施40ppm 氰戊菊酯溶液,喷药后11天,药液在甘兰上消失90%以上,残留半衰期约2.9—3.7,甘兰的生长稀释,降低了甘兰中的农药残留水平。在生长期喷施20%氰戊菊酯乳油25—40毫升/亩.施药2—3次,间隔期5天,在甘兰中的农药残留量低于1.0mg/kg(允许残留量)。在夏季,番茄生长期喷施60ppm 的氰戊菊酯溶液,喷药后8天,药剂在番茄果上消失80%以上,残留半衰期约为2.3天。喷施20%氰戊菊酯乳油30—40毫升/亩,用药2次,间隔期3天在番茄全果中的农药残留量低于0.2mg/kg(允许残留量)。

 
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