这Veraspec HRQ是高分辨率四极质谱仪，可提供出色的离子传输，分辨率和丰度灵敏度，以对低分子量气体进行精细的同位素分析。
- 核研究
- Gas Production
- 燃料电池开发
尽管等含量化合物具有不同的结构和化妆，但它们具有相同的名义质量。微小的毫达，在离子的精确质量上的差异可以揭示其真实成分。在核研究，气体纯度和燃料电池开发中，需要这种水平的分数质量细节，以检测和测量低分子量物种。但是，在低质量范围内实现这一分辨率非常困难。
一种dvanced Core MS components are used by the VeraSpec HRQ to obtain the highest resolution to date in Extrel’s VeraSpec series of high-performance mass spectrometers. Using the Extrel high precision 2.9 MHz control electronics and 19 mm tri-filter quadrupole, the VeraSpec HRQ has a resolution >3000 (M/ΔM) across a 1-50 Da mass range.
除了分数质量分析外，Merlin Automation™控制软件还增加了出色的，有力的功能，可完全表征样品。Merlin软件可以扫描为负离子和阳性离子，并包括对质量特异性分辨率调整的完全控制。这使用户能够在需要的情况下定义并执行单个50个DA扫描，并具有超高分辨率和准确的质量，并在其他群众处进行标称的质量分辨率。这导致了一个分析仪，该分析仪不仅具有显着的灵活性，而且还具有量化每次扫描中样品整体组成的能力。
Figure 1. VeraSpec HRQ
用于核，天然气生产和燃料电池工业的高分辨率四极质谱仪。
氢和氦/氘分析
Some of the most difficult low-mass applications include detecting helium leaks in a heavy hydrogen sample, or measuring hydrogen isotopes in the presence of helium. The VeraSpec’s ultra-high resolution can isolate the accurate mass peaks of deuterium and helium to baseline. In addition, the start of the scan is entirely free of on-blast (an elevated background near m/z 0), thus allowing accurate and precise analysis of hydrogen at m/z 1 (Figure 2).
图2。这Veraspec HRQwas used to analyze a mixture of argon, helium and deuterium. The three images above depict portions of the same scan, displayed with increasing resolution to show the level of detail within the data set.
答：M/z 0.5-50的完整扫描显示样品的质谱。对于大多数扫描，包括出现氩气的M/z 20和40，设置了分析仪以进行单位分辨率，以最大程度地传输和灵敏度。
B. At m/z 5 and below however, the resolution was increased to completely separate the peaks of the low mass molecules.
C.氦和氘的标称质量为4 Da，但VeraSpec HRQ提供了该样品中两种化合物的完全分离和准确的质量。
出色的丰富灵敏度
丰度灵敏度是指峰在其最高点产生的信号之比与质量范围内在点+/- 1 DA生成的信号量。对于在散装气体频谱中主要峰的1 DA之内的分析质量下测量痕量成分是必要的出色丰度灵敏度。同样，超高分辨率使VeraSpec HRQ光谱仪具有大于10的丰度灵敏度6。在分析氦样品期间，峰值3他很容易区分4尽管较大的同位素的浓度大于500,000倍以上（图3）。
图3。一种scan from m/z 0.5 to 5 showing the natural helium isotope3他在UHP氦样品中。3相对于他只有2 ppm4He, but the small peak is clearly visible, because the VeraSpec HRQ has an abundance sensitivity of 106。
这Extrel “Complete System” Advantage
这VeraSpec line of quadrupole mass spectrometers is the result of years of partnership between Extrel and its academic, research and industrial customers. Each VeraSpec analyzer is a turn-key solution, allowing users to focus on their work instead of constructing an analyzer.
- 设计：Each application requires particular capabilities. Proven, preconfigured Extrel parts can be easily and quickly integrated into a mass spectrometer customized to the task at hand.
- Integration:System control, precision alignment and in-vacuum wiring can be complicated problems. Extrel analyzers are engineered with function and maintainability in mind, saving time and reducing costs down the road.
- 验证：离开工厂之前，完整的系统稳定性和功能已得到证明和记录。
- Support:合格的Extrel技术人员将能够安装该仪器，从而验证工厂运行的性能以实现最佳操作。此外，Extrel技术支持可以保证知道用户分析仪在系统一生中可以提供帮助的专家。
一种pplication Specific Customization
VERASPEC HRQ高分辨率四极质谱仪为无缝样品集成提供了灵活的入口选项：
- 用于UHV操作，气体纯度和防泄漏样品的介绍以及在充满挑战的环境中保证安全性的汇合法兰或VCR配件
- Load-lock style chamber for connecting to a glove box, furnace or other outgassing samples
- VCR fittings with metering and toggle valves for sample gases and calibration
- 定制设计的入口也可用
Figure 4.一种cutaway view of the probe in a VeraSpec HRQ with a pumped gas inlet.
Table 1.Veraspec HRQ质量范围Options.
| 质量范围 |
Quadrupole Mass Filter |
Operating Frequency |
Relative Transmission |
Resolution
(M/ΔM FWHM) |
General Sensitivity
（ma/torr） |
| 1-50 |
19 mm (3/4 inch) tri-filter |
2.9 MHz |
75％ |
3000 |
4 |
| 1-120 |
19 mm (3/4 inch) tri-filter |
2.1 MHz |
65％ |
2500 |
3 |
安装要求：
- Recommended Power Supply:
- (2) 120 VAC, 50/60 Hz, 15 Amp circuit
- (2) 220 VAC, 50/60 Hz, 15 Amp circuit
- 环境温度：
- Relative Humidity: 0-90% non-condensing
- 一种nalyzer Weight: 200-250 lbs (90-115 kg)
- 分析仪维度：
- Height: 42.9” (109 cm)
- Depth: 40.0” (102 cm)
- Width: 23.1” (59 cm)
Merlin自动化数据系统软件：
- Instrument Control: PC connected via USB or Ethernet
- 分析模式：
- Scan Mode
- Single Ion Monitoring (SIM)
- 外部通信：
Exceptional Worldwide Service and Support
50多年来，Extrel一直致力于为全球安装的众多乐器提供最大的质量支持服务。经过工厂培训和认证的人员在燃烧控制应用程序的各个阶段为客户提供行业领先的支持。