本文综述了从植物中提取果胶的各种方法，包括化学提取法和生物提取法。
In this paper, the methods of pectin extraction and purification from plant tissues, including chemical and biological methods, are introduced.
目前，评价土壤中金属植物有效性的方法主要有：化学提取法、植物吸收试验、微生物和酶活性试验及同位素法。
The main methods now to evaluate Pb availability in soil are chemical extraction, plant adsorption, microbial and enzyme activation and isotopes tests.
采用同时蒸馏萃取法提取白鲜皮中的挥发油，通过GC-MS对其化学成分进行分析。
The volatile oil from Dictamnus dasycarpus Turcz was extracted by simultaneous distillation and extraction(SED), then separated and analyzed by GC-MS.
本研究采用石油醚、乙醚、甲醇、水溶剂梯度提取法和多种柱层析法，对栽培橘黄裸伞子实体进行了化学研究。
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.
它是建立在异常元素地球化学理论和野外地电提取法的理论基础之上。
It is established on the theory of element geochemistry and the outdoor electrical extraction technique.
本文综述了番茄红素的生产方法，包括化学合成法，植物提取法和微生物发酵法。
In this paper, the ways of lycopene production was reviewed, including chemical synthesis, extraction from plant and microbial fermentation.
从天然物提取法、生物组织培养法和化学合成法三个方面综述了紫草色素的制备方法。
The preparation of the Radix Arnebiae pigment is reviewed from extraction of natural plant, biological organization culture and chemical synthesis.
采用连续提取法对土壤中砷的化学形态进行分析研究，比较加入不同改良剂时砷的各种形态含量的变化。
A continuous extraction method was adopted to analyze the chemical forms of arsenic (as) in soil, and the content change of as with different forms were compared when the additives were added.
采用化学连续提取法对福州西湖两个柱状沉积物样品中垂向不同形态磷进行分级提取分析。
Sequential extraction procedure was used for the extraction of the vertical of phosphorus form in the sediment of the Fuzhou West Lake.
采用同时蒸馏微萃取法提取姜科植物生姜中挥发油，并用气相色谱-质谱联用技术对其挥发性化学成分进行分析。
The volatile oil from ginger was extracted by the method of simultaneous distillation microextraction, the components were separated by gas chromatography and identified by mass-spectrometry.
采用水提取法、醇提取法和石油醚提取法对梓树果实的化学成分进行了比较全面的定性实验。
To obtain chemical constituents from the fruit of Catalpa ovata G. Don, the methods of water extraction, ethanol extraction and petroleum ether extraction were used.
主要研究结果如下：采用加热回流提取法，对白首乌进行乙醇提取，并通过化学萃取得到总甾苷。
The main results of this dissertation were described as following:The roots of C. auriculatum was extracted by ethanol through heating reflux, then purified by chemical extraction.
方法采用水提取法、醇提取法和石油醚提取法对芭蕉根的化学成分进行定性实验。
MethodsTo obtain chemical constituents from Musa basioo, in this paper the methods of water extraction, ethanol extraction and petroleum ether extraction were used.
该提取法比常规的化学溶剂提取法的得率高2.2倍。
The yield of com - yellow pigment by SFE was 2. 2 times as much as in solvent extraction.
目的：对超临界CO2萃取法和水蒸气蒸馏法提取的满山红挥发油化学成分进行比较研究。
Objective: To compare the chemical constituents of volatile oils from Folium Rhododendri Daurici between supercritical CO2 extraction (SCE-CO2) and steam distillation (SD).
采用化学连续提取法对福州西湖两个柱状沉积物样品中垂向不同形态磷进行分级提取分析。
A Sequential extraction procedure was used for the extraction of the vertical of phosphorus form in the sediment of the Fuzhou West Lake.
采用气相色谱-质谱联用技术(GC - MS)分析比较了超临界流体萃取法、水蒸气蒸馏法、索氏提取法及超声提取法所得提取物中的挥发性化学成分，分别鉴定出37,45,27及37种化学成分。
The volatile compounds of extracts obtained by SFE, steam distillation, soxhlet extraction and ultrasound extraction were analyzed by GC-MS. 37, 45, 27 and 37 compounds were identified respectively.
本实验采用水提取法、醇提取法和石油醚提取法对准噶尔铁线莲的化学成分进行了定性研究。
Pok, in this paper the methods of water extraction, ethanol extraction and petroleum ether extraction were used.
本实验采用水提取法、醇提取法和石油醚提取法对准噶尔铁线莲的化学成分进行了定性研究。
Pok, in this paper the methods of water extraction, ethanol extraction and petroleum ether extraction were used.
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