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関連する概念動画

Titrimetric Methods: Types and Commonly Used Strategies01:08

Titrimetric Methods: Types and Commonly Used Strategies

2.3K
In chemistry, titrimetric methods are broadly classified into three types: volumetric, gravimetric, and coulometric. Volumetric titrations involve measuring the volume of a titrant of known concentration that is required to react completely with an analyte. In gravimetric titrations, the standard solution reacts with the analyte to form an insoluble precipitate, which is filtered, dried, and weighed. In coulometric titrations, current is applied to an electrochemical reaction until the reaction...
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EDTA: Indirect and Alkalimetric Titration01:23

EDTA: Indirect and Alkalimetric Titration

1.7K
Unlike direct titration, back-titration, and displacement titration, indirect titration is an EDTA titration method for quantifying anions. In the indirect titration method, anions are precipitated as their insoluble salts with excess metal ions. The filtrate containing the excess metal ions is directly titrated with standard EDTA until the endpoint is achieved. Another approach involves extracting the metal ion and back-titrating with standard EDTA to obtain the endpoint. In this way, the...
1.7K
Potentiometric Titration: Overview01:31

Potentiometric Titration: Overview

3.9K
Potentiometric titration is a quantitative analytical technique that determines the concentration of an analyte by measuring the potential difference between the two electrodes in the solution. The endpoint of a potentiometric titration is the point at which there is a significant change in the potential difference. It occurs when the stoichiometric reaction between the analyte and the titrant is complete. The endpoint is usually determined graphically by plotting the measured potential...
3.9K
Titration in Nonaqueous Solvents01:16

Titration in Nonaqueous Solvents

1.3K
Most acid-base titrations are performed in an aqueous medium. In aqueous titrations, water competes with weaker acids or bases for proton donation or acceptance, leading to ambiguous endpoints in the titration curve. Water also affects the partial ionization of weak acids or bases. For example, water accepts a proton from acetic acid to form hydronium and acetate ions. The hydronium ion formed is a stronger acid than acetic acid, and the acetate ion is a stronger base than water. As a result,...
1.3K
Controlled-Current Coulometry: Coulometric Titration01:18

Controlled-Current Coulometry: Coulometric Titration

481
Coulometric titrations are a form of titrimetric analysis where the reagent is generated electrically, and its amount is evaluated based on current and generating time. The electron serves as the standard reagent. The procedure is similar to conventional titrations, such as endpoint detection.
The fundamental requirements for coulometric titrations are (1) 100% efficiency in the reagent-generating electrode reaction and (2) a stoichiometric and preferably rapid reaction between the generated...
481
Precipitation Titration: Overview01:26

Precipitation Titration: Overview

8.9K
Precipitation titration involves the reaction of a titrant and an analyte to generate an insoluble precipitate. While precipitation titration uses various precipitating agents, silver nitrate is the most common precipitating reagent; titrations involving Ag+ are called argentometric titrations. Usually, the endpoint in a precipitation titration can be detected by visual indicators.
A precipitation titration curve demonstrates the change in concentration of the titrant or analyte upon adding the...
8.9K

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Hot Biological Catalysis: Isothermal Titration Calorimetry to Characterize Enzymatic Reactions
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安全ネットなしの滴定

Seung Eun Lee1, Michael Mathis, Milisa Manojlovich

  • 1Seung Eun Lee is an associate professor at Yonsei University College of Nursing, Seoul, Republic of Korea, and a visiting scholar at the University of Michigan School of Nursing, Ann Arbor. Michael Mathis is an associate professor of anesthesiology at the University of Michigan Medical School, Ann Arbor. Milisa Manojlovich is a professor at the University of Michigan School of Nursing, Ann Arbor. Contact author: Seung Eun Lee, leese@yuhs.ac. The authors have disclosed no potential conflicts of interest, financial or otherwise.

The American journal of nursing
|December 24, 2025
PubMed
まとめ
この要約は機械生成です。

集中治療室(ICU)の看護師は、血管作動薬の投与に関するエビデンスに基づいたプロトコルを必要としています。この研究は、クリティカルケア設定におけるこれらの強力な薬剤の滴定を最適化するための重要なガイダンスを提供します。

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Quantifying the Binding Interactions Between CuII and Peptide Residues in the Presence and Absence of Chromophores
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Measuring Enzymatic Stability by Isothermal Titration Calorimetry
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Quantifying the Binding Interactions Between CuII and Peptide Residues in the Presence and Absence of Chromophores
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科学分野:

  • クリティカルケア医学、薬理学、看護科学

背景:

  • 血管作動薬は、集中治療室(ICU)における血行動態管理に不可欠です。
  • 血管作動薬の滴定に関する現在の実施には、標準化されたエビデンスに基づいたガイドラインが欠けています。
  • 一貫性のない滴定戦略は、最適ではない患者転帰と有害事象の増加につながる可能性があります。

研究 の 目的:

  • ICUにおける血管作動薬の滴定に関するエビデンスに基づいた推奨事項を作成し、提示すること。
  • 血行動態サポートを必要とする重症患者を管理するICU看護師に、明確で実行可能なガイダンスを提供すること。
  • 血管作動薬療法の安全性と有効性を高めること。

主な方法:

  • 血管作動薬の使用と滴定に関する既存の文献の系統的レビュー。
  • クリティカルケア専門家およびICU看護師が関与するコンセンサス開発プロセス。
  • 一般的に使用される血管作動薬の薬物動態および薬力学データの分析。

主要な成果:

  • 一般的な血管作動薬(例:ノルエピネフリン、ドーパミン、ドブタミン)の具体的なエビデンスに基づいた滴定アルゴリズムが提案されました。
  • 開始および調整のための主要パラメータが特定されました。
  • 推奨事項には、標的血行動態目標とモニタリング戦略が含まれます。

結論:

  • 血管作動薬の滴定に関する標準化されたエビデンスに基づいたガイダンスは、ICU看護師にとって非常に重要です。
  • これらの推奨事項の実施は、患者ケアと臨床的意思決定を改善することができます。
  • さらなる研究では、これらの滴定プロトコルの前向きな検証に焦点を当てるべきです。