petroleum ether造句
(1) Conclusion The petroleum ether extracts of Anthriscus have obvious inhibitory effect on the proliferation of lung cancer cell, which can induce the cells' apoptosis.
(2) 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.
(3) The petroleum ether extracts of M. azedarach and M. toosenelen and the alcohol extracts of M. toosenelen inhibited caterpillars" feding and showed toxicity to them at higher concentrations."
(4) Compared the spectrogram , that the petroleum ether used as solvent is better than anther.
(5) The fluorescence parameters of the chloroform extract and petroleum ether extract of two groups of vitrinoid of somewhat similar coalification are studied.
(6) The paper suggests that the extraction of petroleum ether, polysaccharide and sodium copper chlorophyllin from banana leaves can be exploited as dishware abluent or abluent–assistants.
(7) Methods Less toxic solvents such as cyclohexane, n-hexane, petroleum ether and chloroform were compared with benzene and toluene.
(8) The results indicated that petroleum ether extract had the ability to antagonize toxicity induced by ouabain, while water extract had little effect on it.
(9) Four extracts of petroleum ether, ethyl acetate, n-butanol and water were obtained from the methanol extract of the root bark in Periploca sepeium.
(10) ObjectiveTo study the chemical constituents of the petroleum ether extract fraction from Caragana microphylla Lam.
(11) Portions of petroleum ether, n - butanol and water extracted from LEEs was much weaker on anticoagulant activity.
(12) The amount in the sample in a Soxhlet Extractor, using petroleum ether extraction LH, circulating at least 6 times per hour.
(13) The cultural fruiting bodies of the Gymnopilus spectabilis were phytochemical investigated using layer extracts with petroleum ether, diethyl ether, methanol and water and silica gel chromatography.
(14) To obtain chemical constituents of whole Sorbus tianschanica L. , the methods of water extraction[.com], ethanol extraction and petroleum ether extraction were used.
(15) They are also employed to determine the density of gasoline . Kerosene, vegetable oil and petroleum ether.
(16) Overview: The Division mainly sweet clover extract of sweet clover Sichuan region of China for raw materials, petroleum ether extraction by roots in the system.
(17) The active sites of Brucea javanica (L. ) Merr. and Macleaya microcarpa (maxim). Fedde are petroleum ether extracts.
(18) Three different extracts were obtained after freeze-dried Coriandrum sativum L was processed by petroleum ether, 95%-ethanol, and water respectively.
(19) Through single factor and orthogonal experiments, extraction of oil from soybean embryo and its composition were studied by using petroleum ether as degrease solvent and GC, respectively.
(20) The ethanol extract from the twig bark powder of Periploca sepium was suspended in water and successively treated with petroleum ether, ethyl acetate and n-butanol.
(21) To obtain chemical components from the flowers and leaves of Mirabilis jalapa, the methods of water extraction, ethanol extraction and petroleum ether extraction were used.
(22) Methods: (1)To separate stilbene glycoside by using silica gel column chromatography with gradient elution consisting of ethyl acetate and petroleum ether.
(23) ObjectiveTo investigate and compare the best extraction method by petroleum ether from Curcuma wenyujin Y . H.
(24) To obtain chemical constituents of the whole Sorbus tianschanica L. , in this paper the methods of water extraction, ethanol extraction and petroleum ether extraction were used.
(25) Extraction of Gallium from high concentration HCl solution using organic phases which composes of TBP and butyl acetic ester, xylene, petroleum ether and kerosene, respectively, are investigated.
(26) The research shows that the extraction effect is best when petroleum ether is used to extract chloropicrin in vegetables and fruits by supersonic method and vibration is adopted in soil samples.
(27) Overview: The Division mainly rock rose extract rock China's Zhejiang province rose to the growth of raw materials extracted by petroleum ether extract obtained.
(28) Arg. by preliminary test. Methods:The extracted mixture of Mallotus barbatus(Wall. ) Muell. Arg. from petroleum ether, purified water and 95%ethanol were studied by test tube method.
(29) The mixed solvent consists of solvent naphtha, decalin, and petroleum ether in a certain proportion, which was used to synthesize 3-sulfo p-anisidine by using p-anisidine as raw material.
(30) ResultsThe contents of six samples in fatty oil and petroleum ether extracts had no difference, but they had significant difference in water extracts, ethanol extracts, aesculetin and esculin .
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