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Gas-chromatographic determination

Dissolve the residue prepared as in Section 6.2.3 in acetone. Transfer the solution into a volumetric flask, and make up to a given volume, e.g. 5mL (VEnd) with acetone. Inject an aliquot of the solution (Vj) into the gas chromatograph. [Pg.473]

Column temperature Injection temperature Detector Temperature Gas flow rates [Pg.473]

Attenuation Chart speed Injection volume Retention time for bispyribac-methyl [Pg.473]

Durand, J.P., Y. Boscher and N. Petroff (1987), Automatic gas chromatographic determination of gasoline components. Application to octane number determination . Journal of chromatography, No. 395, p. 229. [Pg.455]

A gas chromatographic determination of benzotrichloride and related compounds ia the work environment, after adsorption on a polymeric adsorbant and desorption with CCl has been reported (61). Trace amounts of benzyl chloride, benzal chloride, and benzotrichloride ia environmental samples can be analyzed by Method 8120 of EPA ManualSW-846 with modifications (62). [Pg.61]

This peculiarity of pyrethroids needs to take into account during gas chromatographic determination. [Pg.130]

The specialities of chromatographic behaviour of cypermethrin, permethrin, X-cyhalothrin, deltamethrin and fenvalerate were investigated in this work. Gas chromatographic determination was cai ry out with use of packed column with stationai y phase of different polarity (OV-101, OV-210 OV-17) and capillary and polycapillary columns with non-polai ic stationary phase. Chromatographic peak identification was realized with attraction GC-MS method. [Pg.130]

Eire protection - Eire extinguishing media - Elalogenated hydrocarbons. Code of practice for safe handling and transfer procedures. Supersedes BS 6535 Section 2.2 1989 Water quality - Gas chromatographic determination of some selected chlorophenols m water. Also BS 6068-2.65 1999... [Pg.591]

G. Gastello, Gas-chromatographic determination of alkyllead compounds in aromatic-based fuels , Chim. Ind. 51 700-704 (1969). [Pg.331]

M.C, Philpot, Gas Chromatographic Determination of Plasticizers and Stabilizers in Composite Modified Double-Base Propellants , AnalChem 41 (1), 166-8 (1969) CA 70, 49143 (1969) 49) J. Trauchant, Chromato-... [Pg.303]

M.G. Farey, The Gas Chromatographic Determination of Isopropyl Nitrate in Slurry Explosives , Rept No ERDE-TN-41, Waltham Ab bey (Engl) (1971) 4)J. Diederichse n ... [Pg.968]

Two-dimensional thin-layer chromatography. This method is used to verify the presence of terminal 5-sultones, terminal unsaturated y-sultone, and terminal 2-chloro-y-sultone, if they are detected in the gas chromatographic determination. After extraction of the neutral oil from the AOS sample, the neutral oil is made up volumetrically to at least a 10% solution in hexane. Of this solution 3 pi is spotted onto a silica gel TLC plate together with standard sultones. It is twice developed with 2-propyl ether and then after turning the plate 90° twice developed with 60/40 n-butyl chloride/methylene chloride. The... [Pg.450]

Lisovik Z, Gorbacheva NA. 1977. [Gas chromatographic determination of metaphos, methyl nitrophos and methyl-ethyl thiophos in the blood]. Farmatsiia 26 44-51. (Russian)... [Pg.219]

Zoun PEE, Spierenburg TJ, Baars AJ. 1987. Gas chromatographic determination of endosulfan in fish and water samples. J Chromatogr 393 133-136. [Pg.320]

Boekhold AJ, Van der Schee HA, Kaandorp BH. 1989. [Rapid gas-chromatographic determination of trichloroethylene and/or tetrachloroethylene in lettuce by direct headspace analysis.] Z Lebensm Unters Forsch 189 550-553. (German)... [Pg.254]

Tuinstea LGMTh, Roos AH, Werdmuller WA (1985) Capillary gas chromatographic determination of some chlorobiphenyls in eel fat interlaboratory study. J Assoc OffAnal Chem 68 756-759. [Pg.153]

Almond (nutmeat and hulls), ginned cottonseed, grape, peanut (vines, hay, nutmeat and hulls), soybean (forage, hay and seed), sugarcane, water, and soil Gas-chromatographic determination... [Pg.502]

Wheat, soybean, potato and soil Gas-chromatographic determination... [Pg.519]

Plants (cereals, cotton, potato, citrus, apple, pear, peach, grape, persimmon, apricot, chestnut), soil and water Gas-chromatographic determination [mass spectromet-ric detection (MSD), flame thermionic detection (FTD) or nitrogen-phosphorus detection (NPD)] for plant materials, water and soil... [Pg.540]

Instrumentation Gas-chromatographic determination for rice grain, water and soil... [Pg.585]

Multi-residue Method S19 of the DFG Manual,including Cieanup Procedure Xll-6 (gel-chromatographic cleanup), has been used successfully in many laboratories because of its broad applicability for the gas-chromatographic determination of pesticide residues in foodstuffs. DFG method S19 is also included in the respective European Standards. Subsequently, a modification of the extraction and partition step has been implemented. The modified method requires less experimental effort and eliminates the use of dichloromethane, which is an undesirable solvent for toxicological and ecological reasons. As the results from validation studies demonstrate,... [Pg.1099]

Dissolved the cleaned-up sample in 4 mL of acetone and inject a 2- iL portion of the sample solution into the preconditioned gas chromatograph. Determine the concentration of hymexazol by relating the height of the hymexazol peak to a fresh calibration curve. [Pg.1213]

Apricots, apples, grapes, Japanese pears, melons, peaches, strawberries, tomatoes, watermelons and soil Gas-chromatographic determination for all materials... [Pg.1215]

Pass the solution derived from Section 6.2.2 through a Cig cartridge (conditioned prior to use successively with 5mL of acetonitrile and 10 mL of water), then elute interfering substances with 15 mL of acetonitrile-water (3 17, v/v) and discard the eluate. Elute imibenconazole-debenzyl with 20 mL of acetonitrile-water (2 3, v/v) and collect the eluate in a 100-mL separatory funnel (imibenconazole-debenzyl fraction). Elute imibenconazole with 20 mL of acetonitrile-water (17 3, v/v) and collect the eluate in a 100-mL separatory funnel (imibenconazole fraction). Add 30 mL of 20% sodium chloride aqueous solution and 40 mL of ethyl acetate to each separatory funnel and shake the funnel with a mechanical shaker for 5 min. Collect the ethyl acetate extract, dry the extract with anhydrous sodium sulfate and transfer into a 100-mL round-bottom flask. Concentrate the ethyl acetate extract to near dryness by rotary evaporation and dry with a stream of nitrogen. Dissolve the residue of each fraction in acetone for gas chromatographic determination as in Section 6.3. [Pg.1218]

Plants (cucumber, tomato, eggplant, French bean, deep root leek, strawberry, grape, apple, pear, cherry, peach, Unshu orange, Chinese citron, watermelon, persimmon, lemon, kabosu lime, sudachi, small beans and kidney beans), soil and water Gas-chromatographic determination... [Pg.1221]

Rice (rice grain, rice straw), leek, lettuce, sugar beet (root), sugar beet (leaf), kidney beans, string beans and soil Gas-chromatographic determination... [Pg.1228]

Instead of the packed column mentioned in Section 6.3, a megabore column may also be used for gas-chromatographic determination. The operating conditions are as follows ... [Pg.1232]

Gas-chromatographic determination for plant materials High-performance liquid chromatographic determination for soil... [Pg.1242]

See other pages where Gas-chromatographic determination is mentioned: [Pg.447]    [Pg.116]    [Pg.274]    [Pg.116]    [Pg.112]    [Pg.469]    [Pg.473]    [Pg.475]    [Pg.523]    [Pg.554]    [Pg.558]    [Pg.561]    [Pg.564]    [Pg.1195]    [Pg.1211]    [Pg.1218]    [Pg.1224]    [Pg.1231]   


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