Novel Transportable Mass Spectrometer
There are a variety of compelling reasons to develop methods for the rapid on-site detection of chemical species at trace levels with high specificity. Performing chemical analysis in situ without the necessity to deliver samples to the off-site analytical laboratory is advantageous in many areas of chemical analysis from environmental monitoring and food control to chemical process monitoring. In situ monitoring is also crucial for an early warning of a chemical or biological release. This objective has been partly fulfilled through the development of the current generation of transportable analytical instrumentation for in situ detection of chemical compounds. Most of these fielddeployed instruments are based on optical spectroscopy or electrochemical sensors, because miniaturization of these technologies was relatively straightforward. However, miniaturization of mass spectrometry lags behind, because no sufficient progress in miniaturization of vacuum technologies, ion optics, and mass analyzers have allowed simple shrinking of large research grade laboratory mass spectrometers.
BaySpec has newly introduced its transportable mass spectrometer product line that was specifically developed for field applications using cutting edge linear ion trap technology. Featuring light weight and compact size, BaySpec’s novel linear ion trap mass analyzers are the most sensitive portable devices available on the market with ppt-level detection limit. All instruments are equipped with two sample inlets for low pressure and atmospheric sampling. All BaySpec mass
spectrometers are compatible with in situ and real-time ionization methods including electron impact (EI), thermal desorption (TD), electrospray ionization (ESI), atmospheric pressure chemical ionization (APCI), and any other ambient ionization techniques such as DART and DESI. These extremely compact instruments are very easy to operate and maintain and are ideal for a variety of bulk or trace on-site detection in real time.Mass Analyzers
The new miniature mass spectrometers from BaySpec are based on proprietary linear ion trap technology that offers unparalleled performance. BaySpec’s smallest mass spectrometer series, Portability,™ offers trace-level detection with direct atmospheric sampling, while our Continuity™ mass spectrometer
offers improved sensitivity and mass range for more demanding applications. Custom ion focusing optics coupled with highefficiency transport optics allows Continuity™ to detect virtually all generated ions.BaySpec mass spectrometers also benefit from a completely custom vacuum design that includes pump fabrication, chamber housings, and conductance limiters. These technologies allow our mass spectrometers to perform atmospheric sampling without sacrificing size or performance.
Sampling Systems
BaySpec offers an optional TD-ESI source that comes complete with a probe consisting of a metal inoculation loop for collecting minute amounts of liquids (~ 2 µL) and/or solids (~ 20 ng). Our TD-ESI is capable of sampling virtually any liquid or surface without the need for costly and time-consuming sample preparation. For even greater flexibility, BaySpec’s miniature linear ion trap mass analyzer can detect either positive or negative ions that are generated from the TD-ESI source. Switching the system’s polarity measurement mode is easily accomplished with the click of a button or, in this case, a tap of the screen.
TD-ESI for atmospheric sampling of liquids and solid surfaces shown as a stand-alone unit as well as mounted to the Portability™ mass spectrometer
Features and Specifications
- Compact and Light-weight
- Rapid deployment (< 10 min setup)
- Pulsed atmospheric sampling
Specification
Portability™
Detection Limit
<10 parts-per-billion (ppb)
Mass Range
m/z = 50 – 650 amu
Mass Resolution
0.49 amu (FWHM)
MS/MS Capability
Yes, including data intelligent MS/MS
Ion Polarity
Positive and negative
Sample Introduction/ Ionization
• Atmospheric pressure inlet (API)
• Thermal desorption coupled with electrospray ionization (TD-ESI)
• Atmospheric pressure chemical ionization (APCI)
• Electron impact (El)
• Customizable to user-desired ionization methods
Mass Analyzer
Miniature Linear Ion Trap
Embedded PC
7” Touchscreen, with Windows® 7
External PC Interface
WiFi, USB2.0
Remote Control
via WiFi
Export Data Format
CSV
Spectral Searching
Compatible with NIST EI library or user defined library
Power
100-240 VAC, 50/60 Hz, 72W, Battery option available
Operating Temperature
-5°C to +45°C
Weight
22 lbs. (10 kg)
Size (W x H x L)
13 in × 9 in × 16 in (33 cm × 23 cm × 41 cm)
Applications
Rapid screening of trace residues.
Portability™ outfitted with TD-ESI has been used to rapidly screen for residual amounts of explosives, drugs, pesticides,and mycotoxins within a variety of different samples. A direct sampling probe was used to introduce analytes from surfaces of unprocessed samples. Due to short analysis times (1-5s per sample), the technique allows for rapid screening for applications in food and environmental safety.
Tandem MS capability
BaySpec’s portable mass spectrometers are equipped with tandem MS capability. Here we show an example of MS/MS detection of illegal drugs. The parent ions were isolated inside the linear ion trap and fragmented by air. Product ions were all confirmed by the mzCloud database.
商品属性 [探测范围] <10 parts-per-billion (ppb) [质量范围] m/z = 50 – 650 amu [质量分辨率] 0.49 amu (FWHM)