Liquid Chromatography (LC) Testing

Liquid Chromatography (LC) is a separation technique that uses a liquid mobile phase to slowly filter through a solid stationary phase, carrying the separated components along with it. LC can be used for analytical or preparative applications and help in the separation of inorganic compounds, natural or synthetic polymers, and biological compounds.

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<strong>Liquid Chromatography (LC) Testing</strong>

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Overview
Scope, Applications, and Benefits
Test Process
Specifications
Instrumentation
Results and Deliverables

Overview

Liquid Chromatography (LC) is a standard technique used in separating, identifying, and quantifying the components of a liquid sample. It is used in various industries, including pharmaceuticals, polymers, food, environment, and chemicals, to analyse complex mixtures with high accuracy.

Liquid Chromatography plays a vital role in detecting impurities, tracing product quality, and supporting research and development activities. It may be used for both analytical and preparative purposes based on the procedure followed.

Scope, Applications, and Benefits

Scope

Liquid Chromatography (LC) is a technique used to analyse a liquid or dissolved sample and separate the various components of the sample. It is a popular method used to verify the content of a mixture of substances. LC is used in various fields such as pharmaceuticals, food science, environmental science, and biochemistry, among others. It helps in verifying the active ingredients of a substance, impurities in a substance, additives in a substance, and contaminants in a substance.

It helps in verifying:

– Organic and inorganic compounds
– Impurities
– Additives
– Contaminants

Applications

Monitoring purity of raw materials
Analysis of polymer additives and degradation products
Food safety and nutritional analysis
Environmental monitoring of water and soil
Research and development of new compounds
Bioanalytical studies
Validation of manufacturing processes

Benefits

Accurate and reproducible quantification
Separation of complex mixtures
Detection of impurities at trace levels
Supports quality control and regulatory compliance
Enhances product safety and performance
Provides standardised analytical methodology
Applicable to a wide range of sample types
Supports process optimisation and R&D

Test Process

Sample & Mobile Phase Preparation

Samples are extracted, diluted, or filtered, and solvents/buffers are prepared.

Column Setup & Injection

Suitable LC column is selected, and the sample is introduced into the system.

Separation

Components are separated under controlled flow and temperature conditions.

Detection & Analysis

Separated analytes are detected, and concentrations or purities are determined using calibration standards.

Technical Specifications

Parameter	Details
Applicable Materials	polymers, environmental samples, biochemical mixtures
Mobile Phases Used	Water, organic solvents, buffer solutions depending on method
Detection Methods	UV/Vis, Fluorescence, Refractive Index, Mass Spectrometry
Typical Concentration Range	Trace to high levels depending on application
Measured Compounds	APIs, impurities, additives, contaminants, degradation products
Output Units	Concentration (mg/L, μg/mL), % composition, or area under peak

Instrumentation Used for Testing

Liquid chromatography system (HPLC or UPLC)
UV/Vis, fluorescence, refractive index, or mass spectrometer detectors
Analytical balance
Sample filtration and extraction apparatus
Mobile phase degassing and preparation system
Data acquisition and analysis software

Results and Deliverables

Quantitative concentrations of analytes
Purity and impurity profiles
Chromatographic separation reports
Comparative analysis with standards
Reports

Why Choose Infinita Lab for Liquid Chromatography (LC) Testing?

Infinita Lab offers comprehensive Liquid Chromatography (LC) testing services, a Comprehensive lab network, project management, confidentiality, and rapid turnaround. Trust Infinita Lab for your material testing needs, Faster test results, cost savings, and reduced administrative workload.

Looking for a trusted partner to achieve your research goals? Schedule a meeting with us, send us a request, or call us at (888) 878-3090 to learn more about our services and how we can support you. Request a Quote

Frequently Asked Questions

LC is an analytical technique used to separate, identify, and quantify components in liquid or soluble samples. It relies on the distribution of compounds between a stationary phase (column) and a mobile phase (solvent).

LC provides: Accurate and reproducible quantification of analytes, Separation of complex mixtures, Detection of impurities at trace levels, Quality control and regulatory compliance support, Analysis of diverse sample types

HPLC (High-Performance Liquid Chromatography) uses conventional high-pressure systems for separation, whereas UPLC (Ultra-Performance Liquid Chromatography) operates at higher pressures, providing faster analysis, higher resolution, and better sensitivity.

Yes. With sensitive detectors such as UV, fluorescence, or mass spectrometry, LC can detect analytes at very low concentrations, often in the parts-per-million (ppm) or parts-per-billion (ppb) range.

Yes. LC can identify compounds (qualitative) based on retention time and spectral properties and quantify them (quantitative) using calibration curves or internal standards.