The Three “Must Have’s” for Handheld LIBS
The Z is the ONLY handheld LIBS with an integrated, user-replaceable argon purge. Operating in an argon environment yields 10x or more boost in signal, particularly for emissions in the deep UV (190 nm 0 300 nm), where many elements are measured. Shown in the figure are two spectra from a stainless steel, with and without argon, demonstrating the large signal boost. Also available are larger belt-mounted canisters (4x the volume). Users may also connect the Z to industry standard stationary argon tanks with our optional package of bridge regulator and tubing.
Example of surface preparation by the Z’s laser. Repeat shots, fired at 50 Hz, burn away surface material (calcium indicator) allowing analysis of underlying bulk substance.
Cleaning Mode Laser Technology
– Automates sample prep, offers depth profiling
The Z features novel cleaning mode to provide automated, user-settable surface preparation depending on the type of application. Cleaning mode fires 5-6 mJ/pulse laser shots at 50 Hz (50 shots/second) thus 5 cleaning shots every 0.1 sec. Users can choose the number of total cleaning shots, after which the Z will use subsequent shots for spectral data and analysis. For metal surfaces which may be dirty or contaminated, the standard setting is for 10 cleaning shots, whereas for soil samples, often only a few are used. The cleaning shot capability may also be used for depth profiling, for example, monitoring elemental concentrations as functions of depth into the sample. The laser focus is also under software control so that analysis continues into the depth of the material.
Rastered 2D Laser + Variable Focus
A large body of publications suggests the best LIBS precision is obtained when the laser is rastered, and results averaged over multiple locations. The Z takes rastering a step further for handhelds. It has an integrated XY stage, plus a Z-direction focus adjustment. In addition to factory-set rastering for specific applications (alloy, geochemical, etc.), the user may also setup their own raster pattern. A user can do a line scan, or even single spot analysis on an inclusion or vein of material. The laser spot size is approximately 50 um in diameter. The Z includes an illumination fiber which when aligned with the rastering, illuminates the location where the plasma will is created. With the software-controlled variable focus, a user can obtain analytical results as a function of sample thickness.
Want Quantitative Results? Build Custom Calibrations for any element or sample type with ProfileBuilder
The Z is pre-configured for certain applications such as alloy and mining. But it is designed for so much more. With our PC/Tablet software ProfileBuilder, users can build quantitative calibrations for practically any group of elements, for nearly every material type:
Polymers • Ceramics • Catalysts • Powders and more
How It Works
Users may enter assays of known materials for calibration, locate elemental lines after testing samples, calculate intensities and intensity ratios, perform spectral overlays, baseline subtractions and smoothing. Most users have known reference samples – often proprietary to their operations – to generate calibration curves for specific groups of elements. The calibrations are then easily pushed to the analyzer via USB or Wifi. Unknowns can then be tested for elemental chemistry using the calibration curves developed. ProfileBuilder supports polynomial fits to relate measured intensity ratios or intensities, to concentrations.
Need More Application Specific Info?
Analyze elements in soil and ore’s. In addition to wide elemental range, small-spot user controlled rastering provides for pinpoint analysis of mineral veins or inclusions.
General Materials Analysis
The Z plus our tablet/desktop software, ProfileBuilder, lets you configure the Z for virtually any element in any material type. Choose lines, build calibration curves and models with total flexibility.
Uniquely SciAps Product Features
The Z features a sample detection system that yields the safety of Class 1 conditions. If there’s no sample present, the laser will not fire a single pulse, meaning no stray laser light fired into empty space. If a sample is removed during testing, the laser immediately stops firing once the sample is ¼” or more away from the window. Because the Z will not fire into empty space, it may be operated under Class 1 conditions, with proper training (ANSI Z136.1). Thus the Z provides the analytical advantages of a 3b laser in a device that may be operated in Class 1 conditions. This safety benefit is ONLY achievable with a milli-joule, low rep-rate laser. High rep rate class 3b lasers, like those featured in other LIBS devices, cannot operate with this safety mode.
The new Z features a large display with 3X the brightness of the previous version. It’s easy to read in any lighting condition including direct sunlight.
The new Z is exceptionally well-balanced, with a specially designed ergonomic grip that offers all-day testing without operator fatigue.
The newly designed Z uses much less power, and lasts 6+ hours on a single, lightweight battery. Plug in the AC adapter to recharge and power the analyzer. External battery charger and spare battery included
The Z monitors time and internal temperature, and automatically institutes a calibration as needed. This means no cal-check samples to carry around (and lose or get dirty). Reduces the likelihood of operator error by automating the calibration procedure.
SciAps Z – Top 10 Advantages
The ONLY LIBS that offers Dual-Burn Operation
The Z features on-board argon purge for high precision analysis. Users may also run the Z in air-burn if your testing requires less precision or you have restrictions on gas canisters. 50 years of spark optical emission have proven the analytical superiority of argon purge!
Protect your Confidential Materials Chemistry
The Z includes desktop/tablet software allowing a user (password protected) to modify calibrations, elements analyzed, grade IDs and various spectral pre-processing. Customers can keep their proprietary materials proprietary!
Lightest, Fastest LIBS Analyzer
The latest Z is the lightest, fastest high performance LIBS analyzer. Perfectly balanced, you can test fatigue-free all day long. Wrist strap also included. Results shown in 1 second, full test time 3 sec.
No Sample Grinding!
The Z uses a 50 Hz laser, ﬁring 10 surface cleaning shots in 0.2 seconds to burn away surface contaminants, dirt, etc. The Z is the only LIBS unit proven to analyze even the dirtiest scrap without grinding.
The Z rasters the laser to 6 different positions and automatically averages the results. Why do this? Because LIBS lasers are typically 50 um in diameter, and testing a single location may not average out inhomogeneities even in vacuum melt alloys. Also if the laser happens to hit an inclusion or embedded contaminant, an outlying result will be averaged out over the rastering. 50 years of LIBS scientific literature tell you that rastering is a “must have.”
Free Software Upgrades
Software upgrades free for the life of the analyzer.
Do you have specific UI or SW requests? Tell us about them. Most requests are requested by multiple customers, and we’ll always do our best to include them in a future software update.
On-board Camera, WiFi, Bluetooth and GPS
Photo-document samples, and/or aim laser at specific area on sample if needed. WiFi/BT make for easy data transfer and connectivity. USB connections also included.
Brightest, largest display, easiest to read in direct sunlight.
Generally the lowest in the industry. Why? We design our products for rough use and low lifetime service costs. SciAps makes our own lasers and spectrometers, so we can repair items on a component-level.