- 関
- electrospray ionization mass spectrometry、ESI-MS、ESIMS
WordNet
- join together into a mass or collect or form a mass; "Crowds were massing outside the palace"
- the property of a body that causes it to have weight in a gravitational field
- a body of matter without definite shape; "a huge ice mass"
- an ill-structured collection of similar things (objects or people)
- the condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge); "the ionization of a gas" (同)ionisation
- the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas (同)ionisation
- (Roman Catholic Church and Protestant Churches) the celebration of the Eucharist
- a musical setting for a Mass; "they played a Mass composed by Beethoven"
- a sequence of prayers constituting the Christian Eucharistic rite; "the priest said Mass"
- the use of spectroscopes to analyze spectra (同)spectrometry, spectroscopic analysis, spectrum analysis, spectrographic analysis
- informal terms for a mother (同)mama, mamma, mom, momma, mommy, mammy, mum, mummy
PrepTutorEJDIC
- 〈C〉(一定の形をもたない物に用いて)…の)『固まり』,集まり《+『of』+『名』》 / 〈C〉『多数』,多量(の…)《+『of』+『名』》 / 〈C〉《the ~》『大部分』(の…),(…の)主要部《+『of』+『名』》 / 〈U〉(物体の)大きさ,かさ / 《the masses》『一般大衆』,庶民 / 〈U〉質量(物体の基本的性質を表す量) / 〈人・物〉‘を'集める,一団にする / 〈人・物が〉一かたまりになる,一団となる / 大衆の,一般に付及した / 大規模な
- 《M-》《話》おかあちゃん(mamma)
UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
English Journal
- Preparative isolation and purification of phlorotannins from Ecklonia cava using centrifugal partition chromatography by one-step.
- Lee JH1, Ko JY1, Oh JY1, Kim CY2, Lee HJ3, Kim J4, Jeon YJ5.Author information 1Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea.2Natural Product Research Center, Hanyang University, Daejeon-dong, Ahnsan, Gyeongi-do, Republic of Korea.3Natural Product Research Center, KIST Gangneung Institute, Daejeon-dong, Gangneung, Gangwon-do, Republic of Korea.4Department of Food Science and Technology, Pukyong National University, Busan 608-737, Republic of Korea. Electronic address: jikim@pknu.ac.kr.5Department of Marine Life Science, Jeju National University, Jeju 690-756, Republic of Korea. Electronic address: youjin@jejunu.ac.kr.AbstractVarious bioactive phlorotannins of Ecklonia cava (e.g., dieckol, eckol, 6,6-bieckol, phloroglucinol, phloroeckol, and phlorofucofuroeckol-A) are reported. However, their isolation and purification are not easy. Centrifugal partition chromatography (CPC) can be used to efficiently purify the various bioactive-compounds efficiently from E. cava. Phlorotannins are successfully isolated from the ethyl acetate (EtOAc) fraction of E. cava by CPC with a two-phase solvent system comprising n-hexane:EtOAc:methanol:water (2:7:3:7, v/v) solution. The dieckol (fraction I, 40.2mg), phlorofucofuroeckol-A (fraction III, 31.1mg), and fraction II (34.1mg) with 2,7-phloroglucinol-6,6-bieckol and pyrogallol-phloroglucinol-6,6-bieckol are isolated from the crude extract (500mg) by a one-step CPC system. The purities of the isolated dieckol and phlorofucofuroeckol-A are ⩾90% according to high performance liquid chromatography (HPLC) and electrospray ionization multi stage tandem mass spectrometry analyses. The purified 2,7-phloroglucinol-6,6-bieckol and pyrogallol-phloroglucinol-6,6-bieckol are collected from fraction II by recycle-HPLC. Thus, the CPC system is useful for easy and simple isolation of phlorotannins from E. cava.
- Food chemistry.Food Chem.2014 Sep 1;158:433-7. doi: 10.1016/j.foodchem.2014.02.112. Epub 2014 Feb 28.
- Various bioactive phlorotannins of Ecklonia cava (e.g., dieckol, eckol, 6,6-bieckol, phloroglucinol, phloroeckol, and phlorofucofuroeckol-A) are reported. However, their isolation and purification are not easy. Centrifugal partition chromatography (CPC) can be used to efficiently purify the various
- PMID 24731366
- Efficient preparative isolation and identification of walnut bioactive components using high-speed counter-current chromatography and LC-ESI-IT-TOF-MS.
- Grace MH1, Warlick CW1, Neff SA1, Lila MA2.Author information 1Plants for Human Health Institute, Food Bioprocessing and Nutritional Sciences, North Carolina State University, North Carolina Research Campus, Kannapolis, NC 28081, USA.2Plants for Human Health Institute, Food Bioprocessing and Nutritional Sciences, North Carolina State University, North Carolina Research Campus, Kannapolis, NC 28081, USA. Electronic address: mlila@ncsu.edu.AbstractPreparative isolation of complex mixtures of compounds from walnut polar extracts was established by a combination of high-speed counter-current chromatography (HSCCC) and electrospray ionization-ion trap-time of flight mass spectrometry (ESI-IT-TOF-MS). Compounds were isolated after a solvent optimisation selection based on solute distribution in a biphasic solvent system. Isolation was achieved through one or two successive HSCCC runs, and final purification on Sephadex LH-20. Isolated compounds included ellagitannins (1-11), gallic acid (12), dicarboxylic acid glucosides (13-15), hydrojuglone glucoside (16), catechin (17), procyanidin B2 (18), and megasterone glucosides (19-20). Praecoxin D (4) was isolated for the first time from walnut, while praecoxin A methyl ester (5) and glansreginin A n-butyl ester (14) are newly identified compounds. The purity and identity of isolated compounds were confirmed by NMR and HPLC-ESI-MS/MS. These results provided a foundation for in depth characterisation of walnut compounds and offered an efficient strategy for isolation of potentially health-relevant phytochemicals from walnuts.
- Food chemistry.Food Chem.2014 Sep 1;158:229-38. doi: 10.1016/j.foodchem.2014.02.117. Epub 2014 Mar 1.
- Preparative isolation of complex mixtures of compounds from walnut polar extracts was established by a combination of high-speed counter-current chromatography (HSCCC) and electrospray ionization-ion trap-time of flight mass spectrometry (ESI-IT-TOF-MS). Compounds were isolated after a solvent optim
- PMID 24731336
- Detection of adenosine 5'-triphosphate by fluorescence variation of oligonucleotide-templated silver nanoclusters.
- Lee JD1, Cang J2, Chen YC1, Chen WY1, Ou CM1, Chang HT3.Author information 1Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan.2Department of Chemical Engineering, Yancheng Institute of Industry Technology, Yancheng, Jiangsu, China.3Department of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan. Electronic address: changht@ntu.edu.tw.AbstractOligonucleotide-templated Ag nanoclusters (DNA-Ag NCs) prepared from AgNO3 using an oligonucleotide (5'-TAACCCCTAACCCCT-3') as a template and NaBH4 as a reducing agent have been used for sensing of adenosine 5'-triphosphate (ATP). The fluorescence intensity and emission wavelength of DNA-Ag NCs are dependent on the pH value and ATP concentration. At pH 3.0 and 11.0, ATP shows greater effects on fluorescence of the DNA-Ag NCs. Upon increasing ATP concentration from 10 to 50μM, their emission wavelength at pH 3.0 shifts from 525 to 585nm. At pH 11.0, their fluorescence intensity (510nm) increases upon increasing ATP concentration. The circular dichroism (CD), electrospray ionization-mass spectrometry (ESI-MS), absorption, and fluorescence results indicate that ATP and pH affect the interactions between DNAs and Ag atoms, resulting in changes in their fluorescence. The DNA-Ag NCs allow detection of ATP over a concentration range of 0.1-10μM, with a limit of detection 33nM. Practicality of the DNA-Ag NCs probe has been validated with the determination of ATP concentrations in the lysate of MDA-MB-231 breast carcinoma cells.
- Biosensors & bioelectronics.Biosens Bioelectron.2014 Aug 15;58:266-71. doi: 10.1016/j.bios.2014.02.068. Epub 2014 Mar 7.
- Oligonucleotide-templated Ag nanoclusters (DNA-Ag NCs) prepared from AgNO3 using an oligonucleotide (5'-TAACCCCTAACCCCT-3') as a template and NaBH4 as a reducing agent have been used for sensing of adenosine 5'-triphosphate (ATP). The fluorescence intensity and emission wavelength of DNA-Ag NCs are
- PMID 24657647
Japanese Journal
- Anti-influenza A virus activity of a new dihydrochalcone diglycoside isolated from the Egyptian seagrass Thalassodendron ciliatum (Forsk.) den Hartog
- Mohammed Magdy M.D.,Hamdy Abdel-Hamid A.,El-Fiky Nabaweye M.,Mettwally Walaa S.A.,El-Beih Ahmed A.,Kobayashi Nobuyuki
- Natural Product Research 28(6), 377-382, 2014-03-19
- … The structures of all the isolated compounds were established based on 1D and 2D NMR spectroscopy and high-resolution-mass spectrometer. … High-resolution electrospray ionization mass spectra (HR-ESI-MS) were obtained using a JEOL JMS-T100TD spectrometer (JEOL Ltd., Tokyo, Japan). …
- NAID 120005438910
- A Simple Levulinate-based Ratiometric Fluorescent Probe for Sulfite with a Large Emission Shift
- , , ,
- Analytical Sciences 30(5), 589-593, 2014
- … Probe 1 could quantificationally detect sulfite by a ratiometric fluorescence spectroscopy method with high selectivity and sensitivity. … Further, the recognition mechanism of probe 1 for sulfite was confirmed using nuclear magnetic resonance and electrospray ionization mass spectrometry. …
- NAID 130004442292
- Highly Efficient Extraction Separation of Lanthanides Using a Diglycolamic Acid Extractant
- , , , , , ,
- Analytical Sciences 30(2), 263-269, 2014
- … Slope analysis, loading tests, and electrospray ionization mass spectrometry measurements demonstrated that the transfer of Ln3+ with DODGAA proceeded through a proton-exchange reaction, forming a 1:3 complex, Ln(DODGAA)3. … Time-resolved laser-induced fluorescence spectroscopy revealed that the extracted Eu3+ ions were completely dehydrated by complexation with DODGAA. …
- NAID 130004442263
Related Links
- Advantages and Disadvantages There are some clear advantages to using electrospray ionization mass spectrometry as an analytical method. One advantage is its ability to handle samples that have large masses. Another advantage ...
- wn.com
★リンクテーブル★
[★]
- 関
- electrospray ionization mass spectrometry、electrospray ionization mass spectroscopy、ESI-MS
[★]
- 関
- electrospray ionization mass spectrometry、electrospray ionization mass spectroscopy、ESIMS
[★]
- 英
- electrospray ionization mass spectrometry、electrospray ionization mass spectroscopy、ESI-MS、ESIMS
- 関
- エレクトロスプレーイオン化質量分析
[★]
- 関
- electrospray ionization mass spectroscopy、ESI-MS、ESIMS
[★]
- 英
- electrospray ionization mass spectrometry、electrospray ionization mass spectroscopy、ESI-MS、ESIMS
- 関
- 熱スプレーイオン化質量分析法
[★]
- 関
- spectrometric、spectrometry、spectrophotometrically、spectrophotometry、spectroscopic
[★]
- 塊、密集体、集団、多数、大量
- 大部分、主要部、大半
- 質量
- 一般大衆
- (医)腫瘤
[★]
- 関
- mass spectrometric、mass spectrometry、mass spectrum analysis、MS
[★]
- 関
- thermospray