Laboratory Products 33
Precision UV-Visible lens for forensic crime scene analysis
The Model 228 lens from Resolve Optics is a precision-engineered solution for Reflected Ultraviolet Imaging Systems (RUVIS), helping crime scene investigators detect fingerprints, bloodstains, and other trace evidence that may be missed with traditional methods.
Accurate evidence collection is critical to solving crimes, but conventional approaches - such as visual inspection and fingerprint lifting - can miss subtle or hidden clues. RUVIS cameras operating in the deep UV spectrum (320–400 nm) are transforming forensic investigation, and the Model 228 lens is at the heart of this evolution.
Designed for both UV and visible light imaging, the Model 228 allows investigators to locate and focus on targets in visible light, then switch to UV imaging seamlessly - without the need to refocus. Its compact telescopic focusing mount provides a wide range of movement in a small form factor, making it ideal for challenging field conditions.
The lens delivers true high-resolution macro imaging with 1:1 magnification, perfectly matching the optical resolution of both the lens and the RUVIS image intensifier. With its broad field of view and exceptional clarity, the Model 228 is widely used in applications ranging from fingerprint detection to documenting human skin damage at crime scenes.
Contact Resolve Optics for a case study. More information online:
ilmt.co/PL/XWKV
65962pr@reply-direct.com
Through-container analysis with Raman spectroscopy
Raman spectroscopy is widely used for rapid, nondestructive identification in scientific, medical, and law enforcement settings. Traditionally, it is used to sample materials directly or through transparent/ translucent barriers, which limits its practicality in the field. A new and unique advancement - Raman identification through opaque packaging - overcomes this limitation. Through-package analysis permits easier, safer, and faster material identification and avoids contact with unknown substances for warehouse inspections, first responders, and customs agents.
From content ID of a suspicious bag during a traffic stop to analysis of homemade incendiary devices, every second counts and nothing can be left to chance. The TacticID-1064 ST from Metrohm also benefits manufacturers who perform raw material verification. Operators can test container contents without exposure and get results in seconds. This streamlines QC and supports 100% testing of incoming goods. It also enables 90% of testing to happen at the point of receipt and avoids delays in production due to laboratory wait times.
More information online:
ilmt.co/PL/MwQ2 65573pr@reply-direct.com ADVERTORIAL
Type 1 water: Purity that doesn’t last Why immediate use matters and why storage may put compliance at risk Written by Elise Mosley from Avidity Science
Laboratories depend on the reliability of their results, which in turn depend on water quality being consistent and compliant with internal Standard Operating Procedures (SOPs) and external regulatory standards.
However, what is less well understood is that Type 1 water does not stay Type 1 for long once it has been produced and dispensed.
How Quickly Type 1 Water Degrades By definition, Type 1 ultrapure water has a resistivity of 18.2 MΩ·cm at 25°C. Yet the moment it leaves the purification system and is exposed to air, degradation begins:
• Within minutes to 1 hour: Absorption of carbon dioxide from the air causes resistivity to drop sharply, often to 10–12 MΩ·cm • Within a few hours: Resistivity can fall further to less than10 MΩ·cm • Over longer storage: Microbial regrowth and leaching from containers drive quality further down, outside Type 1 specification
Even in sealed containers, water quality declines over hours to days, since CO₂ and trace contaminants diffuse through plastics where there is no recirculation to maintain purity.
What happens below 18.2 MΩ·cm? It is important to note that 18.2 MΩ·cm is the threshold for Type 1 (ultrapure) water. When resistivity drops below this level, the water no longer meets Type 1 specifications. Depending on its resistivity, total organic carbon (TOC), and microbial content, the water may fall into Type 2 range (1–18 MΩ·cm) or even lower laboratory water grades.
In practical terms, this means that water, which was Type 1 when produced, may already be out of specification for SOPs within minutes of being stored in an open container.
Why point-of-use systems are the answer
To ensure that true Type 1 water is always available when and where it is needed, laboratories increasingly turn to dedicated Type 1 water purification systems. These systems:
• Continuously monitor quality parameters (resistivity, TOC), giving documented proof of compliance
• Minimise the risk of failed experiments, wasted reagents, and repeat testing
• Support audit readiness and regulatory assurance
More information online:
ilmt.co/PL/7WBj 65967pr@reply-direct.com
Precision Water Purification for Every Laboratory Application
Avidity Science is at the forefront of laboratory water purification system design and manufacturing, backed by over 25 years of dedicated service to the scientific community. From Reverse Osmosis to Deionised, to UltraPure water, our trusted solutions power research, diagnostics, and industrial laboratories around the world.
Type 1 Type 2 Type 3
To learn more or connect with a specialist, contact our expert team at
EMEA.Info@
avidityscience.com or call +44 (0) 1844 201142
WWW.LABMATE-ONLINE.COM
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