甲醇

The linear ranges of the calibration curves for lycorine, lycoramine and galanthamine were 5.0-400 mg/L, respectively. Their detection limits were 5.0, 5.1 and 10.2 ng, respectively and the RSD were 2.2%, 5.7% and 4.4%, respectively.

采用三乙胺水溶液(pH9.0)-乙腈－甲醇作为流动相对石蒜碱、力可拉敏和加兰他敏进行HPLC测定，方法的线性范围为5.0~400mg/L，检出限分别为5.0、5.1、10.2ng， RSD分别为2.2%、5.7%和4.4%。

OBJECTIVE To study the flavonol glycosides and triterpenoid saponin in the whole plants of Lysimachia capillipes Hemsl.

目的对细梗香草全草甲醇部分进行分离和化合物结构鉴定。

Antioxidant activity of methanol and n-hexane extract were determined by the inhibition percentage of malonyl dialdehyde under low density lipoprotein peroxidation system.

山药切细冷冻乾燥后磨成细粉，以甲醇或正己烷萃取山药粉状物，所得之粗萃取物以不同浓度测其在低密度脂蛋白(low density lipoprotein，' LDL)系统之抗氧化力，即丙二醛(malonyl dialdehyde， MDA)生成抑制率。

ObjectiveTo study HPLC Fingerprint of methanol extract from different tissues from Mangifera indica L. in various species and make a comparison among them. So to provide method guideline and experimental basis for studying and establishment of HPLC Fingerprint photometry of Caulis Herbs like leaves of Mangifera indica L..

目的通过考察3个品种芒果叶不同组织部位甲醇提取物的高效液相色谱指纹图谱，并对其HPLC指纹图谱进行比较，为研究和测定芒果叶等叶类药材的HPLC指纹图谱提供方法指导和实验依据。

So to provide method guideline and experimental basis for studying and establishment of HPLC Fingerprint photometry of Caulis Herbs like leaves of Mangifera indica L.. MethodsWaters symmetry C18 (5 μm,4.6 mm×250 mm) column was applied with 0.1% phosphoric acid as mobile phase in a gradient mode.

目的通过考察3个品种芒果叶不同组织部位甲醇提取物的高效液相色谱指纹图谱，并对其HPLC指纹图谱进行比较，为研究和测定芒果叶等叶类药材的HPLC指纹图谱提供方法指导和实验依据。

The present study used Hypersil Hypercarb as the column connected to the UV and ELSD detectors. Using 0.1% formic acid aqueous solution and methanol as the mobile phase, the composition of a total of 9 compounds, catalpol (9) in Rehmanniae Radix, 5-hydroxymethylfurfural (5-HMF)(8) in Rehmanniae Preparata Radix, and the various carbohydrates including glucose (1), sucrose (2), melibiose (3), manninotriose (4), raffinose (5), stachyose (6), and verbascose (7) in Radix were analyzed simultaneously within 60 minutes.

本文以Hypersil Hypercarb作为分离管柱，串联UV及ELSD检测器，使用0.1%甲酸水溶液及甲醇为流动相，於60分钟内可同时分析生地黄中的catalpol (9)、熟地黄中的5-Hydroxymethylfurfural (5-HMF)(8)，及地黄所属的各种醣类成分glucose (1)、sucrose (2)、melibiose (3)、manninotriose (4)、raffinose (5)、stachyose(6)、verbascose (7)共计9种化合物的含量。

Preliminary experiment for organic waste water treatment illustrated that the COD removal efficiency for methanol,toluene and metanilic acid was 91.3%,89.28% and 84.53%,respectively.

在初步处理有机废水的实验中，甲醇、甲苯、间氨基苯磺酸COD的去除率分别达到91.3％、89.28%和84.53%。

The analytes were extracted with 0.2% metaphosphoric acid/methanol (6:4, v/v) then cleaned up by three solid-phase extraction cartridges (Oasis HLB, Oasis MAX and Cl8), and had better results from Oasis HLB cartridges. The recoveries for oleandomycin and erythromycin analysis by developed method were

萃取净化之方法，经测试以0.2%偏磷酸与甲醇(6：4， v/v)之混合液，比较三种固相萃取匣（Oasis HLB， Oasis MAX及C18），结果以利用Oasis HLB固相萃取匣萃取及分析，可得到最佳之回收率及净化效果，且具有良好之再现性。

The HPLC results showed the methanoic extracts of this structure were similar to the wild fruit bodies.

这种结构和野生子实体的甲醇萃取物经HPLC分析已具相似的结果。

Methods HPLC was applied in this study. Kromasil KR100-5C18 (4.6 mm×250 mm, 5μm) column and DAD detector were used with a mixture of methanol and 0.1% methanoic acid as mobile phase in a gradient mode.

采用高效液相色语法，以DAD为检测器，Kromasil KR100-5C18 (4.6 mm×250 mm， 5μm)为分析用色谱柱，甲醇-0.1%甲酸溶液为流动相进行梯度洗脱，建立了玄参药材的指纹图谱。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。