Starna Scientific
  • Home
  • Optics
  • Cuvettes
      • Back
      • Spectrophotometer Cells
      • Colorimeter Cells
      • Fluorometer Cells
      • Cell Options
      • Special Applications
      • Cell Height Finder
      • Submit Order Enquiry
  • Certified Reference Materials
      • Back
      • UV-Visible Spectroscopy
      • Visible Spectroscopy
      • Fluorescence Spectroscopy
      • NIR/MIR Spectroscopy
      • Raman Spectroscopy
      • Life Sciences
      • Microplate References
      • HPLC
      • Product Enquiry
      • Reference set registration
  • DMV-Bio Cell
  • Support
      • Back
      • Cells
      • Reference Materials
      • Safety Data Sheets
  • Accreditations
  • Contact Us

Menu

  • You are here:  
  • Home
  • Propyl Parabenz Solution

In order to provide you with the best online experience this website uses cookies.

By using our website, you agree to our use of cookies. Learn more

I agree

Cookie Policy

What Are Cookies

As is common practice with almost all professional websites this site uses cookies, which are tiny files that are downloaded to your computer, to improve your experience. This page describes what information they gather, how we use it and why we sometimes need to store these cookies. We will also share how you can prevent these cookies from being stored however this may downgrade or 'break' certain elements of the sites functionality.

How We Use Cookies

We use cookies for a variety of reasons detailed below. Unfortunately in most cases there are no industry standard options for disabling cookies without completely disabling the functionality and features they add to this site. It is recommended that you leave on all cookies if you are not sure whether you need them or not in case they are used to provide a service that you use.

Disabling Cookies

You can prevent the setting of cookies by adjusting the settings on your browser (see your browser Help for how to do this). Be aware that disabling cookies will affect the functionality of this and many other websites that you visit. Disabling cookies will usually result in also disabling certain functionality and features of the this site. Therefore it is recommended that you do not disable cookies.

The Cookies We Set

When you submit data to through a form such as those found on contact pages or comment forms cookies may be set to remember your user details for future correspondence.

Third Party Cookies

In some special cases we also use cookies provided by trusted third parties. The following section details which third party cookies you might encounter through this site.

This site uses Google Analytics which is one of the most widespread and trusted analytics solution on the web for helping us to understand how you use the site and ways that we can improve your experience. These cookies may track things such as how long you spend on the site and the pages that you visit so we can continue to produce engaging content.

For more information on Google Analytics cookies, see the official Google Analytics page.

From time to time we test new features and make subtle changes to the way that the site is delivered. When we are still testing new features these cookies may be used to ensure that you receive a consistent experience whilst on the site whilst ensuring we understand which optimisations our users appreciate the most.

More Information

Hopefully that has clarified things for you and as was previously mentioned if there is something that you aren't sure whether you need or not it's usually safer to leave cookies enabled in case it does interact with one of the features you use on our site. However if you are still looking for more information then you can contact us through one of our preferred contact methods:

Contact our data compliance officer: data.protection@starna.com

Telephone: +44 (0)20 8500 1264

Starna Scientific Ltd.
52/54 Fowler Road
Hainault, Essex
IG6 3UT
United Kingdom

Last updated 6 June 2018

 

Technique


  • UV-Visible Spectroscopy
  • Visible Spectroscopy
  • Fluorescence Spectroscopy
  • NIR Spectroscopy
  • Raman Spectroscopy
  • Life Sciences
  • Microplate References
  • HPLC

HPLC References


  • Erbium Oxide Solution
  • Propyl Parabenz Solution

Propyl Parabenz Linearity set

Purpose

Purpose

This material can be used to verify the photometric linearity of HPLC UV detectors (that can accommodate conventional UV cells) in compliance with published with HPLC qualification protocols 

Description and Discussion

Description and Discussion

Five solutions of Propyl Parabenz in methanol, in 10mm UV quartz cells that have been permanently sealed by heat fusion.

The use of Propyl Parabenz solutions in methanol for the validation of HPLC DAD detector linearity is well documented. Preparing these solutions in the laboratory can have hazards due to the volatility and toxicity of the methanol. Permanently heat sealed cells effectively isolate the operator from these problems.

The spectrum of propyl parabenz, when prepared in methanol, has an absorbance peak at 257 nm. Within the concentration range 5-30 mg/l, if the absorbance scale of a narrow bandwidth (<5 nm) UV detector is linear, the apparent absorbance of a series of concentrations measured at these peaks will be a linear function of concentration.

Typical spectra

Typical spectra

Propyl-Parabenz-Linearity

Absorbance values are certified at 257 nm for concentrations of 5,10, 20, 25 and 30 mg/l, when measured against the supplied methanol blank

 

 
Catalogue Number

Catalogue Number

  Catalogue Number 

Starna Propyl Parabenz HPLC linearity set

5, 10, 20, 25 and 30 mg/land methanol blank cell

RM-PBA

 

Product enquiry

Product enquiry

 

Data sheet

Data sheet

 

  • About Starna Group
  • Contact Us
  • Support
  • Environmental Policy
  • Terms & Conditions
  • Cookie Policy
  • Privacy Notice
  • Cuvettes
  • Cuvettes Catalogue
  • Reference Materials
  • CRMs Catalogue
  • Optics
  • Starna DMV-Bio Cell
  • Reference set registration


The UKAS scope of accreditation, detailing the related activity, may be accessed
by clicking on the appropriate UKAS accreditation symbol

© 2025 Starna Scientific Limited