Achieving high-precision concentration measurements in liquid samples requires advanced light-absorption technology. Professional photometers and spectrophotometers are indispensable for quantifying chemical parameters in water, food, and industrial effluents with laboratory-grade accuracy. These sophisticated optical instruments provide the critical data necessary for sample analysis and specialized environmental, soil, water, and food analysis.
Why Choose Professional Photometers?
Our curated collection of photometry technology is engineered for spectral range, measurement repeatability, and field durability:
- Advanced Spectrophotometers: We stock Tintometer UV-VIS Spectrophotometers like the XD 7500 (190–1100 nm) and the VIS XD 7000, designed for comprehensive spectral scans and complex water analysis.
- Portable Analytical Power: Utilize Xylem WTW Photometers PhotoFlex Turb, offering handheld versatility for on-site testing without compromising on analytical precision.
- Essential Optical Accessories: Find Tintometer Round Cuvettes (24 mm and 16 mm) with lids, available in various set sizes to ensure consistent light path lengths.
- Standardized Testing Reagents: Explore Tintometer Test Tablets, including DPD No. 1 for chlorine testing, and chloride reference standards for meter calibration.
LabFriend supplies photometers from the most respected names in optical measurement technology:
- Tintometer (Lovibond): A global leader in water analysis, providing high-performance XD series spectrophotometers and standardized reagent systems.
- Xylem WTW: Renowned for robust portable photometers and integrated turbidity measurement solutions.
- Macherey-Nagel: Supplies a wide range of rapid colorimetric tests and photometric reagents for diverse analytical needs.
- Water-i.d.: Specialist in digital water testing equipment and specialized reagents for pool and industrial water monitoring.
Photometric analysis often relies on careful sample preparation and lipid management; to further enhance your workflow, we recommend exploring these related categories:
- Chemical Oxygen Demand (COD): Use photometers to read COD results after digestion in Behr reaction vessels.
- Biological Oxygen Demand (BOD): Complement your photometric data with respirometric BOD readings from Velp or WTW.
- Oil Testing Equipment: Monitor fat and oil quality using Testo digital testers to ensure they don't interfere with aqueous photometric readings.
- Centrifuge Tubes: Clarify samples in LLG or Eppendorf tubes to prevent turbidity from affecting photometric accuracy.
Unsure if your laboratory requires the full UV-VIS range of an XD 7500 or the portability of a PhotoFlex meter? Our team provides local technical support to help you find the perfect measurement solution with fast shipping and competitive pricing.
Frequently Asked Questions
1. What is the difference between a photometer and a spectrophotometer?
A photometer generally measures light at specific fixed wavelengths, while a spectrophotometer like the Tintometer XD 7500 can scan across a wide range of wavelengths (UV and Visible) for more complex analysis.
2. Why is cuvette size important?
The diameter of the cuvette, such as the Tintometer 24 mm round vials, determines the light path length; consistent sizing is vital for calculating concentrations accurately based on Beer-Lambert's Law.
3. Can the Xylem WTW PhotoFlex be used in the field?
Yes, the PhotoFlex series is specifically designed for portable use, featuring a robust housing and intuitive interface for high-precision water testing outside of the traditional lab environment.
4. What are DPD tablets used for in photometry?
DPD No. 1 tablets are standardized reagents used to develop a color reaction in the presence of chlorine, which the photometer then measures to determine concentration.
