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Related Concept Videos

Atomic Absorption Spectroscopy: Interference01:25

Atomic Absorption Spectroscopy: Interference

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Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...
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High-Performance Liquid Chromatography: Types of Detectors01:15

High-Performance Liquid Chromatography: Types of Detectors

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The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...
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Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences01:20

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences

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Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and...
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Development of Analytical Methods01:21

Development of Analytical Methods

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An analytical methodology can be divided into four sequential steps: technique, method, procedure, and protocol. A technique is a scientific principle that rationalizes a specific phenomenon through chemical measurements. Adapting a technique for analyzing a sample of interest is termed a method. The procedure outlines the directions for performing the analysis via an analytical method. The protocol is the detailed guidelines on the procedure, which should be strictly followed to obtain the...
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Therapeutic Drug Monitoring: Drug Analysis Methods01:26

Therapeutic Drug Monitoring: Drug Analysis Methods

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Therapeutic Drug Monitoring (TDM) is a clinical practice that measures specific drug levels in a patient's blood or body tissues to tailor drug therapy effectively. This monitoring is critical for managing drugs with narrow therapeutic indices like digoxin and phenytoin, ensuring they are both safe and effective. For instance, monitoring theophylline levels in asthma patients involves precision and sensitivity to adjust doses according to individual responses to therapy, ensuring efficacy and...
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Data Validation01:15

Data Validation

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Method validation is a crucial process in analytical chemistry designed to confirm that a given method consistently produces reliable and high-quality results. This process is essential when a method is applied to different sample matrices or when procedural modifications are made, ensuring that the results meet acceptable standards across various applications.
Key parameters for method validation include:
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Related Experiment Video

Updated: Mar 1, 2026

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry
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Challenges in Modern Anti-Doping Analytical Science.

Christiane Ayotte, John Miller, Mario Thevis

    Medicine and Sport Science
    |June 2, 2017
    PubMed
    Summary

    Modern anti-doping analytical science faces growing complexity due to new performance-enhancing drugs. Advanced technology and specialized staff are crucial for detecting these substances and evolving anti-doping strategies.

    Area of Science:

    • Analytical Chemistry
    • Biochemistry
    • Pharmacology

    Background:

    • The anti-doping landscape is evolving with new therapeutic compounds and designer drugs.
    • Increased complexity demands advanced analytical capabilities for accurate detection.

    Purpose of the Study:

    • To highlight the multifaceted technical challenges in modern anti-doping analytical science.
    • To discuss the implications of sophisticated analytical procedures on anti-doping strategies.

    Main Methods:

    • Review of current analytical techniques and instrumentation in anti-doping.
    • Analysis of the impact of novel drug substances on detection methodologies.
    • Consideration of the resource requirements for advanced anti-doping laboratories.

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    Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry
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    Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry

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    High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry
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    Color Spot Test As a Presumptive Tool for the Rapid Detection of Synthetic Cathinones
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    Main Results:

    • Need for enhanced instrumentation (speed, sensitivity) and specific metabolite identification techniques.
    • Development of biological assays for peptide hormones and their markers is essential.
    • Significant investment in technology and specialized personnel is required.

    Conclusions:

    • The complexity of anti-doping analysis necessitates continuous technological advancement.
    • Future anti-doping strategies may be reshaped by the adoption of sophisticated analytical procedures.
    • Accredited laboratories require substantial resources to meet evolving detection demands.