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Related Concept Videos

Gas Chromatography: Sample Injection Systems01:08

Gas Chromatography: Sample Injection Systems

In gas chromatography, the sample is introduced as a vapor plug into the carrier gas stream for high efficiency and resolution. A microsyringe injects the sample solution into a heated sample port, vaporizing it and mixing it with the carrier gas. This process is important to ensure the sample is properly prepared for analysis. Thermally sensitive samples can be injected directly into the column and volatilized by slowly increasing the column temperature.
Two primary injection methods are used...
High-Performance Liquid Chromatography: Instrumentation00:57

High-Performance Liquid Chromatography: Instrumentation

High-performance liquid chromatography, or HPLC, is an analytical technique that separates liquid samples under high pressures. An HPLC instrument consists of glass bottles for storing solvents called mobile phase reservoirs. HPLC-grade solvents are used to maintain high purity, and the dissolved gases are removed using a degasser, such as a vacuum pumping system or sparging with helium. The solvents are then pumped into the analytical column using a screw-driven syringe or reciprocating pumps.
Supercritical Fluid Chromatography01:18

Supercritical Fluid Chromatography

Supercritical fluid chromatography (SFC) provides a beneficial substitute for gas chromatography (GC) and liquid chromatography (LC) for certain samples because it merges the top attributes of both techniques. SFC allows the separation and analysis of compounds that GC or LC does not easily manage. These compounds are traditionally nonvolatile or thermally unstable, making GC unsuitable and lacking functional groups required for HPLC analysis.
SFC utilizes a supercritical fluid mobile phase,...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview01:19

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then passed on to...

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Related Experiment Video

Updated: Jun 28, 2026

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
12:26

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Published on: August 27, 2013

A software package for computer-controlled flow-injection analysis.

L T Prop1, P C Thijssen, L G van Dongen

  • 1Department of Analytical Chemistry, University of Nijmegen, Toernooiveld, 6525ED Nijmegen, The Netherlands.

Talanta
|March 1, 1985
PubMed
Summary
This summary is machine-generated.

This study introduces an automated flow-injection system featuring a computer-controlled sample changer, injection device, and photometer. Its modular software ensures flexibility and adaptability for various computer systems.

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Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics
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Analyzing Mixing Inhomogeneity in a Microfluidic Device by Microscale Schlieren Technique
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Published on: June 12, 2015

Area of Science:

  • Analytical Chemistry
  • Instrumentation Science

Background:

  • Traditional methods for sample analysis can be time-consuming and labor-intensive.
  • Automation in laboratory settings is crucial for improving efficiency and reproducibility.

Purpose of the Study:

  • To describe an automated flow-injection system for enhanced analytical processes.
  • To highlight the user-friendly and adaptable nature of the system's software.

Main Methods:

  • Development of an automated flow-injection system.
  • Integration of a computer-controlled sample changer.
  • Incorporation of an automated injection device and a photometer.
  • Design of a modular software package.

Main Results:

  • The system successfully automates sample handling and analysis.
  • The computer control ensures precise sample delivery and measurement.
  • The photometer enables quantitative detection.
  • The software package is modular, understandable, and flexible.

Conclusions:

  • The described automated flow-injection system offers an efficient and adaptable solution for analytical laboratories.
  • The modular software facilitates easy integration and customization across different computing platforms.