WordNet
- a chemical agent for use in chemical reactions
PrepTutorEJDIC
- (化学実験の)試薬
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.
- 1. サルコイドーシスの病因 pathogenesis of sarcoidosis
- 2. 空腹時ケトアシドーシスおよびアルコール性ケトアシドーシス fasting ketosis and alcoholic ketoacidosis
- 3. 血清ビリルビン定量の臨床的側面 clinical aspects of serum bilirubin determination
- 4. 肺サルコイドーシスの臨床症状および診断 clinical manifestations and diagnosis of pulmonary sarcoidosis
- 5. 成人における糖尿病性ケトアシドーシスおよび高浸透圧性高血糖状態：臨床的特徴、評価、および診断 diabetic ketoacidosis and hyperosmolar hyperglycemic state in adults clinical features evaluation and diagnosis
English Journal
- 18F-FDG PET detects inflammatory infiltrates in spinal cord experimental autoimmune encephalomyelitis lesions.
- Buck D, Förschler A, Lapa C, Schuster T, Vollmar P, Korn T, Nessler S, Stadelmann C, Drzezga A, Buck AK, Wester HJ, Zimmer C, Krause BJ, Hemmer B.Author information Department of Neurology, Technische Universität München, Munich, Germany.AbstractMultiple sclerosis (MS) is a heterogeneous disease with respect to lesion pathology, course of disease, and treatment response. Imaging modalities are needed that allow better definition of MS lesions in vivo. The aim of this study was to establish an MRI- and PET/CT-based imaging modality and to evaluate approved and promising PET tracers in experimental autoimmune encephalomyelitis (EAE), the animal model of MS.
- Journal of nuclear medicine : official publication, Society of Nuclear Medicine.J Nucl Med.2012 Aug;53(8):1269-76. doi: 10.2967/jnumed.111.102608. Epub 2012 Jun 27.
- Multiple sclerosis (MS) is a heterogeneous disease with respect to lesion pathology, course of disease, and treatment response. Imaging modalities are needed that allow better definition of MS lesions in vivo. The aim of this study was to establish an MRI- and PET/CT-based imaging modality and to ev
- PMID 22738927
- Determination of ammonium ion using a reagentless amperometric biosensor based on immobilized alanine dehydrogenase.
- Tan LL, Musa A, Lee YH.Author information School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia. babybabeoo@gmail.comAbstractThe use of the enzyme alanine dehydrogenase (AlaDH) for the determination of ammonium ion (NH(4)(+)) usually requires the addition of pyruvate substrate and reduced nicotinamide adenine dinucleotide (NADH) simultaneously to effect the reaction. This addition of reagents is inconvenient when an enzyme biosensor based on AlaDH is used. To resolve the problem, a novel reagentless amperometric biosensor using a stacked methacrylic membrane system coated onto a screen-printed carbon paste electrode (SPE) for NH(4)(+) ion determination is described. A mixture of pyruvate and NADH was immobilized in low molecular weight poly(2-hydroxyethyl methacrylate) (pHEMA) membrane, which was then deposited over a photocured pHEMA membrane (photoHEMA) containing alanine dehydrogenase (AlaDH) enzyme. Due to the enzymatic reaction of AlaDH and the pyruvate substrate, NH(4)(+) was consumed in the process and thus the signal from the electrocatalytic oxidation of NADH at an applied potential of +0.55 V was proportional to the NH(4)(+) ion concentration under optimal conditions. The stacked methacrylate membranes responded rapidly and linearly to changes in NH(4)(+) ion concentrations between 10-100 mM, with a detection limit of 0.18 mM NH(4)(+) ion. The reproducibility of the amperometrical NH(4)(+) biosensor yielded low relative standard deviations between 1.4-4.9%. The stacked membrane biosensor has been successfully applied to the determination of NH(4)(+) ion in spiked river water samples without pretreatment. A good correlation was found between the analytical results for NH(4)(+) obtained from the biosensor and the Nessler spectrophotometric method.
- Sensors (Basel, Switzerland).Sensors (Basel).2011;11(10):9344-60. doi: 10.3390/s111009344. Epub 2011 Sep 29.
- The use of the enzyme alanine dehydrogenase (AlaDH) for the determination of ammonium ion (NH(4)(+)) usually requires the addition of pyruvate substrate and reduced nicotinamide adenine dinucleotide (NADH) simultaneously to effect the reaction. This addition of reagents is inconvenient when an enzym
- PMID 22163699
- Direct determination of ammoniacal nitrogen in water samples using corona discharge ion mobility spectrometry.
- Jafari MT, Khayamian T.Author information Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.AbstractIn this study, direct determination of ammoniacal nitrogen residues in water samples using corona discharge ion mobility spectrometry (CD-IMS) was investigated. Pyridine was used as an alternate reagent gas to enhance selectivity and sensitivity of the method. The results indicate that the limit of detection (LOD) was about 9.2x10(-3)mugmL(-1) and the linear dynamic range was obtained from 0.03 to 2.00mugmL(-1). The relative standard deviation was about 11%. Furthermore, this method was successfully applied to the direct determination of ammoniacal nitrogen in river and tap water samples and the results were compared with the Nessler method. The comparison of the results validates the potential of the proposed method as an alternative technique for the analysis of the ammoniacal nitrogen in water samples.
- Talanta.Talanta.2008 Sep 15;76(5):1189-93. doi: 10.1016/j.talanta.2008.05.028. Epub 2008 May 28.
- In this study, direct determination of ammoniacal nitrogen residues in water samples using corona discharge ion mobility spectrometry (CD-IMS) was investigated. Pyridine was used as an alternate reagent gas to enhance selectivity and sensitivity of the method. The results indicate that the limit of
- PMID 18761176
Japanese Journal
- 群馬県藤岡市鈩沢に産するアンモニアを含むグラファイト層間化合物
- 越後 拓也,木股 三善,興野 純,滝沢 茂,清水 雅浩
- 岩石鉱物科学 33(3), 77-84, 2004-05-30
- … The ingestion of ammonia and sodium in GIC was confirmed by Nessler's reagent, micro XRD (X-ray diffraction), EPMA (electron probe micro analysis) and micro Raman spectrometer.The EPMA examination clarified that ammonia and sodium were inhomogeneously distributed in graphite grains. …
- NAID 10012803581
- 誘導結合プラズマ発光分光法による半導体銅配線用窒化タンタル膜の高精度組成定量法及び蛍光X線分析法への応用
- 小沼 雅敬,竹中 みゆき,矢吹 元央,林 勝
- 分析化学 52(6), 475-480, 2003-06-05
- 半導体次世代Cu配線用材料の一つである窒化タンタル膜(TaN)の組成評価法を,湿式試料溶解法を用いて検討した.試料をHFとHClで180℃,2時間加圧分解後,Taは誘導結合プラズマ発光分析法,Nはネスラー吸光光度法により定量し,同一溶液からの定量が可能となった.また,確立した溶解法で値付けした試料を蛍光X線分析法の標準試料へと適用し,化学分析値との誤差1%以内で高精度に,且つ迅速(化学分析法の1/ …
- NAID 110002905244
- A METHOD FOR ESTIMATION OF L-GLUTAMINASE ACTIVITY IN SOILS
- OMURA Hiroaki,SATO Fumimasa,HAYANO Koichi
- Soil science and plant nutrition 29(3), 295-303, 1983-09-00
- … For the estimation of NH^+_4, the improved Nessler's method was adopted to assay for soil L-glutaminase activity. … To the diluted filtrate was added 0.1 M phosphate buffer (pH 7.6) and Nessler's reagent respectively. …
- NAID 110001719557
Related Links
- ネスラーしやく【ネスラー試薬 Nessler’s reagent】 アンモニアガス，アンモニウムイオンに対する高感度の検出，定量に使用される分析試薬の一つ。とくに微量の場合には，比色定量試薬として，上水試験用などに使われる。
- Nessler-s-reagent definition, an aqueous solution of potassium iodide, mercuric chloride, and potassium hydroxide, used as a test for the presence of ammonia. See more. Dictionary.com Word of the Day Translate Games Blog ...
Related Pictures
★リンクテーブル★
| リンク元 | 「ネスラー試薬」「Nessler試薬」「Nessler's reagent」 |
| 関連記事 | 「reagent」 |
「ネスラー試薬」
「Nessler試薬」
「Nessler's reagent」
「reagent」