A person wearing a white lab coat and blue latex gloves is pressing a button on a scientific testing machine.
Physical Measurement

Analytical Testing Requirements for FDA Filings

Explore how analytical testing supports FDA filings through method validation, stability testing, specifications, and reliable pharmaceutical results.

Lab techs at the work station writing information and data on a clipboard document. They have blue latex gloves on.
Image Analysis

When To Choose Image Analysis for Particle Testing

Knowing when to choose image analysis for particle testing can make a difference in results. Particle Technology Labs explores when to make a decision.

A female scientist at the work desk using a microscope to examine particle size and shape. She holds the Petri dish.
Image Analysis

Why Particle Shape Matters Beyond Particle Size

Particle size often serves as the starting point for material characterization, but it rarely tells the complete story. Two materials with nearly identical particle size distributions can behave very differently because their particles have different shapes. Understanding size

Two lab scientists working closely to discuss a test. One sits at the table while the other stands at his shoulder.
Image Analysis

When To Transfer Analytical Methods to a CRO

Analytical methods play a central role in product development, quality assurance, and regulatory success. A well-developed method provides accurate, repeatable data that supports informed decisions throughout a product’s lifecycle. As projects grow more complex, many organizations eventually reach

A male scientist at the work station in blue latex gloves and PPE as he holds a sample in his hands.
Services

Method Development Best Practices for New APIs

Developing a reliable analytical method for a new active pharmaceutical ingredient (API) requires careful planning, scientific expertise, and a structured approach from the earliest stages of research. Every decision made during development influences data quality and long-term manufacturing

A male laboratory professional in the lab alone at the workstation. He looks into the microscope at a sample.
Pore Size

How Mercury Intrusion Porosimetry Measures Pore Size

Pore structure plays a fundamental role in determining the performance of many materials. Manufacturers often evaluate pore size when developing pharmaceuticals, catalysts, ceramics, filtration media, construction materials, and advanced industrial products. The distribution and volume of pores can

Particle Size

Invisible to the Eye, Critical to Compliance: Particle Testing in Eye Drops

When you tilt your head back and squeeze a drop of solution into your eye, you expect absolute purity. Because the eye is one of the most sensitive and vulnerable organs in the human body, even the slightest

PTL News

PTL Honors 33-Year EVP Lisa Jandacek and Welcomes Incoming COO

Particle Technology Labs (PTL), the world’s premier analytical contract laboratory specializing in particle characterization testing, today announced two significant leadership milestones: the retirement of Executive Vice President and Director of Operations Lisa Jandacek, and the appointment of Antonette

A blurry view of a pharmaceutical lab scientist placing small medicine vials on the counter in a neat row.
Quality Assurance and Methods Compliance

How Analytical Testing Supports Drug Approval

Bringing a new drug to market requires extensive research, rigorous validation, and comprehensive regulatory review. Every stage of pharmaceutical development depends on reliable data that demonstrates product safety, efficacy, and quality. Analytical testing provides the scientific evidence needed