This Week's Lab Product News; Lab Questions; Lab Water Purification | Labwrench eNews | LabWrench

January 12, 2015

Product Resources

Top 5 Questions You Should Ask When Buying a UV-VIS Spectrophotometer

  1. For what applications will you be using the instrument for? This will help you determine the detection range you require. Don’t forget to consider future applications that may require a broader range.
  2. What range of stray light performance are you comfortable with for your application and budget?
  3. Consider what sort of samples you’ll be working with in order to determine what absorbance range you will need in your UV-Vis spectrophotometer. For example, if it is a turbid or concentrated liquid or a solid sample that is optically thick, you may require a working absorbance range between 5 Å and 8 Å or higher.
  4. What level of throughput and reliability do you need?
  5. How much will the instrument cost? Don’t forget to factor in the cost of maintenance, etc. along with the cost of acquisition.

Click here to read more about choosing the right UV-VIS Spectrophotometer for your needs.

Product of Interest

ABB Analytical LS4000 Tunable Diode Laser Analyzer

The LS4000 is an in situ cross-stack analyzer for measuring gas component concentrations. It applies the highly selective, optical measuring principle of tunable diode laser (TDL) absorption spectroscopy. LS4000 is a stand-alone system and is approved for use in hazardous areas according to international standards. The device consists of a transmitter and a receiver unit. The units are connected by a junction box.


Read more about the LS4000 Tunable Diode Laser Analyzer at the ABB Analytical website.




The PURELAB Chorus range gives you the chance to configure a solution that best suits your needs with the added benefit of flexibility should your future needs change. Ideal for a wide range of applications including sophisticated research and testing applications, qualitative analyses, feeding ultrapure water systems, glassware washing, autoclaves etc. The list of possible applications is endless!

Visit the ELGA website the learn more about the PURELAB Chorus


Help your Colleagues

Plenty of discussions are happening on LabWrench all the time. We have many questions come in daily from users that are seeking advice from fellow users and lab professionals on LabWrench. Can you help any of these users find the answers they are looking for?

Beckman Coulter PA 800 plus - Differences
What are the differences between the Beckman PA800 and the Beckman PA800 Plus? Advise this member.

LECO Corporation TruSpec® Series - EDTA standards
We run blanks and drifts at start daily. Occasionally our checks (EDTA standards) during runs come back slightly off. Is there a way to figure out how much error there could be in our unknown samples based on how far off the EDTA check comes back from what it should be? Advise this member.

VWR symphony - Condensation inside the unit
We are getting a lot of condensation inside the unit. Wondering if it's time to replace the temperature probe? We noticed a few years ago that the temperature reading on the digital display screen DOES NOT match what we are getting on the reference thermometer inside the incubator. The unit has not had that much usage (used during Jan-April for cell culture lab course every year) but it's been giving us problems over the last few years. Any help would be greatly appreciated. By the way, the CO2 levels are stable and no problems with respect to 5% CO2 with the incubator. Advise this member.

Click here to view all Questions and Discussions on LabWrench.

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Company News Hot Off The Press

FLEX™ from CRAIC Technologies: a Flexible UV-visible-NIR Microspectrophotometer Concept
CRAIC Technologies, the worlds leading innovator of UV-visible-NIR microspectroscopy solutions, is proud to introduce the FLEX™ UV-visible-NIR microspectrophotometer concept. FLEX™ is designed to be, as its name suggests, flexible in configuration, capabilities and pricing. Tailored for cost effective spectroscopic analysis of many types of microscopic samples, FLEX™ operates from the deep ultraviolet to the near infrared. Read more.


Phenomenex Adds Versatile F5 (Pentafluorophenyl) Columns With Unmatched Reproducibility to Kinetex HPLC and UHPLC Core-Shell Line
Phenomenex Inc., a global leader in the research and manufacture of advanced technologies for the separation sciences, announces Kinetex F5 – a robust pentafluorophenyl propyl (PFP) core-shell phase that overcomes reproducibility and performance limitations of existing PFP and F5 products on the market. Read more.


ChromaTOF-HRT® 1.81 Now Available
LECO Corporation is pleased to announce the availability of a major upgrade to its ChromaTOF-HRT brand software platform. ChromaTOF-HRT version 1.81 offers both new features and significant improvements in core functionality, making data review and acquisition easier and more intuitive for users. Read more.

 Click here to view all news articles on LabWrench.

Sponsor of the Week

Thank you to Syngene for sponsoring our Imaging Systems category on LabWrench
Syngene is a division of the Synoptics Group, founded in 1985 by imaging experts from the University of Cambridge. At Syngene they live and breathe image analysis because products specifically for gel documentation and fluorescence/chemiluminescence imaging are all they’ve ever focused on developing. Syngene's other divisions in the Synoptics Group, Synbiosis and Syncroscopy, develop imaging solutions for microbial and microscopy applications so they are complete life science imaging specialists. Synoptics Health focuses on imaging techniques within the clinical environment. Syngene is headquartered in Cambridge, a thriving scientific hub in the UK and have a centrally located US subsidiary in Frederick, USA. Globally, their products are supported by an international network of over 60 highly-trained distributors, all of whom employ imaging specialists. Read more about Syngene.

Visit the Syngene website to view their full product line.

Upcoming Free Webinar


FREE Webinar:
Managing Your Laboratory Informatics

Thursday January 22, 2015
12:00 - 1:30 PM EST

 Register Now!


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Questions from the Vault

We have so many questions filling our forums that sometimes questions can be missed and go without answers. Can you help us provide answers for these users with unanswered questions?

Varian AA240FS - Results export
Does the Varian AA240FS export results as CSV or similar? If yes, please provide me with the file format and an example file. Advise this member.

Hach Company DR 6000 - Working principle
My company is using DR6000, but I wonder why we need to do a standard check for most of the test methods. Is it necessary? With the installation of this instrument, it should have done checks on the detector on the rest, right? Advise this member.

PerkinElmer Optima 7000 DV
I am trying to fix my instrument and I am getting an error message stating "Initialization failed-profile shifted too far". Can anyone assist me? Advise this member.

Click here to view all Questions and Discussions on LabWrench.




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Links to CATEGORY PAGES on LabWrench

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UV / VIS Spectrophotometers


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