At NJ Labs, we offer precise and reliable optical rotation testing services using our state-of-the-art Rudolph AutoPol V Automatic Polarimeter (APV-6W). This advanced analytical instrument is essential for identifying and verifying optically active compounds—making it a critical component of pharmaceutical testing, nutraceutical testing, and raw material quality control.
Whether you’re analyzing APIs, dietary supplement ingredients, or botanical extracts, our optical rotation services help ensure your products meet regulatory standards and label claims.

Optical rotation is the measurement of how a compound rotates plane-polarized light. This technique is widely used to:
Our team performs optical rotation analysis following USP, EP, and JP pharmacopeial methods to ensure data accuracy and regulatory acceptance.
NJ Labs uses the Rudolph AutoPol V, a premium polarimeter designed for high-accuracy testing in regulated environments. Key features include:
This polarimeter is regularly calibrated using traceable standards, providing highly accurate and reproducible results.
Our optical rotation testing supports clients across industries:
We offer both standalone optical rotation testing and integration within larger testing programs, including stability studies, batch release, and method validation.
We routinely test samples such as amino acids, vitamins, excipients, and herbal compounds where optical activity determines both identity and purity.
If you need optical rotation analysis as part of your raw material qualification, product development, or regulatory submission, NJ Labs is here to help. Contact us today to discuss your project or request a quote.