Its structure was characterized by ESI-MS spectra and elemental analysis.
利用ESI - MS及元素分析对其结构进行表征。
Results The synthesized compounds were confirmed correct by 1HNMR and ESI-MS.
结果合成的目标化合物经1HNMR和ESI-MS确证其结构。
The structures of the key intermediates and target molecule were confirmed by ESI-MS, IR and NMR.
关键中间体及最终产物的结构经质谱、红外光谱、核磁共振氢谱及碳谱得到确证。
The analysis method and strategy of extrinsic and intrinsic glycans were set up by ESI-MS in the thesis.
本论文应用质谱法建立了外源性和内源性寡糖微量分析的方法和策略。
The defectiveness and future development about the applications of ESI-MS in chiral recognition are discussed.
通过综述对质谱技术用于手性识别的不足之处以及未来主要发展趋势进行了讨论。
Cellotriose and cellotetraose were analyzed by electron pray ionization mass spectrometry(ESI-MS) with negative ion mode.
在负离子模式下对纤维三糖和纤维四糖进行电喷雾电离质谱（ESI-MS）分析。
The structure and fragmentation pathway of silybin were elucidated by electron spray ionization mass spectrometry (ESI-MS).
采用电喷雾离子阱(ESI - MS)质谱技术对水飞蓟宾的结构和裂解途径进行研究。
The fragmentation pathway of raddeanin A was studied by electrospray ionization mass spectrometry(ESI-MS/MS) together with chemical derivatization.
以化学衍生结合电喷雾电离质谱（ESI-MS/MS）法研究银莲花素A的质谱裂解方式。
The MS behavior of 22 saponins existed in P. notoginseng burk were studied by direct infusion into electrospray ion trap mass spectrometry(ESI-MS).
应用电喷雾-离子阱质谱技术研究了22种三七皂苷类成分的电喷雾离子化规律和二级质谱碎裂规律。
RP-HPLC method and ESI-MS were established to separate and analyze the component of anthocyanidins from blueberries of Vaccinium uliginosum of China.
采用反相高效液相色谱法和电喷雾质谱法对我国野生笃斯越橘中花青素组分进行了分离和分析。
CONCLUSION ESI-MS is a new method for studying the drug-protein noncovalent binding, and it offers some advantages in sensitivity, high-speed, accuracy.
结论ESI-MS是研究药物与蛋白间非共价结合的一种新方法，具有灵敏、快速和准确的特点。
The principle of electrospray ionization-mass spectrometry (ESI-MS) and matrix assisted laser desorption ionization-mass spectrometry (MALDI-MS) is described.
概述了电喷雾电离质谱(esi - MS)、基质辅助激光解析电离质谱(MALDI - MS)的原理。
The analysis method of momordica saponins with SPE purification, HPLC detection and ESI-MS qualitative analysis was established using momordica as raw material.
以苦瓜为原料，建立了SPE精制、HPLC检测、ESI-MS定性为主要步骤的苦瓜皂苷的分析方法。
Conclusion: Off-line coupling TLC ESI-MS can simply and rapidly provide qualitative examination of saccharide spots in TLC chromatogram of Traditional Chinese Medicine.
结论：TLCESI - MS离线联用方法能快速简便地对中药TLC图谱中糖类斑点进行定性。
Method: High temperature and pressure was applied to extract alkaloids in Kusnezoff Monkshood Root, and ESI-MS was adopted to detect the unprocessed and the processed lipo-alkaloids.
方法：利用高温高压提取草乌中生物碱，利用电喷雾质谱法对提取前后的脂类生物碱进行检测分析。
Results The key intermediate 4 for the synthesis of febuxostat was synthesized via a four-step procedure in a total yield of 22.6% and its structure was confirmed by 1H-NMR and ESI-MS.
结果经四步反应合成非布司他关键中间体4，总收率为22.6%，其结构经核磁共振氢谱、质谱确证。
CONCLUSION ESI-MS offers some advantages in sensitivity, high-speed, accuracy for studying the noncvalent binding between anti-hepatitis B immune ribonucleic acid and human plasma protein.
结论ESI-MS技术用于抗乙肝免疫核糖核酸与蛋白间的非共价结合化学计量比研究具有灵敏、快速和准确的特点。
Methods: HPLC-MS equipped with an electro spray ionization (ESI) source was used for this study.
方法：使用电喷雾电离源分析蒜酶催化蒜氨酸反应产物。
The electrospray ionization mass spectrometry(ESI MS)was one of the most widely applicable bio-MS technologies.
电喷雾质谱是目前应用最广泛的生物质谱技术之一。
The alkylbenzene sulfonates (ABS) have been identified by positive, negative ions electrospray ionization (ESI) coupled with collision activated dissociation (CAD) MS methods.
用正、负电喷雾电离(esi)并结合碰撞活化解离(CAD)质谱法对烷基苯磺酸盐(abs)进行鉴定。
Microcystins in the algal cells collected from the water bloom of the Guanting Reservoir were further investigated by LC-ESI/MS after they were studied by the method of HPLC.
在利用高效液相色谱方法研究的基础上，采用液相色谱-电喷雾质谱（LC-ESI/MS）方法对相同的藻毒素样品进行了进一步的定性研究。
Proteins were separated and resolved in CIEF according to their differences in isoelectric point (pI), and then characterized by ESI MS.
蛋白质首先在毛细管等电聚焦过程中根据它们等电点的差异得到分离，然后被电喷雾质谱鉴定。
Conclusion: With synthetical chromatographic and direct infusion ESI MS methods, abundant information on composition of fractions of traditional Chinese medicine formulas can be obtained.
结论：综合运用色谱和直接输注esi MS，可以获得关于方剂提取部位组成的丰富信息。
The micro-level DINP in polyester plastics was studied by normal phase high performance liquid chromatography-electrospray ionization mass spectrometry (NP-HPLC/ESI MS).
采用正相高效液相色谱-电喷雾电离质谱（NP-HPLC/ESI MS）法对聚酯类增塑剂产品中微量DINP进行分析。
Electrospray ionization mass spectrometry(ESI- MS) is a soft ionization technique by which molecular ions are mainly formed.
电喷雾质谱（ESI - MS）技术是一种软电离技术，其中主要是分子离子形成。
Sodium alginate were degradated by the enzyme. It can be proved by TLC and ESI-TOF-MS that mono-uronic acid and DP of Alginic acid oligosaccharides between two to eight were contained.
采用上述酶降解褐藻酸钠得到的产物用TLC检测得知含有单糖醛酸，用ESI-TOF-MS检测得知含有二糖至八糖的混合褐藻酸寡糖。
Sodium alginate were degradated by the enzyme. It can be proved by TLC and ESI-TOF-MS that mono-uronic acid and DP of Alginic acid oligosaccharides between two to eight were contained.
采用上述酶降解褐藻酸钠得到的产物用TLC检测得知含有单糖醛酸，用ESI-TOF-MS检测得知含有二糖至八糖的混合褐藻酸寡糖。
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