氣相層析儀
液相層析儀
氣相層析質譜儀
液相層析質譜儀
光譜儀
元素分析
生命科學
總有機碳分析儀
熱分析儀
麵粉特性測定儀
 
 
 
        生命科學 Life Science雷射瞬間光解光譜儀
品名:雷射瞬間光解光譜儀
型號:LKS80 Laser Flash Photolysis Spectrometer
 

產品說明:

英國Applied Photophysics 公司,秉持著20 多年的創新設計和應用支援能力,開發了優越性能研發級雷射瞬間光解光譜儀,於全世界相關的動態反應技術領域上,居最快速、最高感度、最佳選擇產品之市場領導者地位。LKS80 用研究毫微秒(nanosec)到微秒(microsec)的動力學分析,通過一定波長的雷射光的激發,觀察分子形態在此快速極短時間範圍内,同時得到激發態吸收光譜、螢光發散光譜的變化,進而穫取更高感度,樣品用量更少,數據準確度更高的反應、結構、能態變化的動力學訊息。搭載無與倫比超穩定高感度氙燈(Xe)光源、應答反應時間可達2ns、解析度0.10ns,超過5,000,000筆數據存取/單次分析卓越處理能力,線性與對數時間軸同時分析能力,自動執行標準功能的激發態吸收光譜,大空間樣品室及可靈活彈性運用的客製化光學系統,可自由擴充停留光譜儀及相關應用裝置,優異性能及全面的擴充裝置配件,絕對可滿您各種的研究需求。



產品規格:
LKS80 Laser Flash Photolysis Spectrometer
Transient absorbance spectrometer for measurement single and multi-wavelength laser induced kinetics over nanosecond timescales and longer.
 
Light Source:
150W Xenon short arc with pulsing unit
 
Sensitivity:
Within +/- 0.001 AU in pulsed mode
Within +/- 0.0005 AU in CW mode
 
Standard detector:
photomultiplier detector with 5 stage dynode-chain housing;
R928 (190 – 920nm)    2 to 3ns rise time
 
Monochromator:
programmable, Czerny-Turner, f/3.4, with 1200 l/mm holographic grating
 (other  gratings can be fitted)
 
Sample Housing:
dimensions 300mm x 400mm with integral optical rails, programmable shutters,
thermostattable cell holder. Optics for cross beam excitation are supplied as standard
(variable aperture stops and filter holders are also included), gas inlet (for N2 purging).
Design permits a wide range of customisations including available options such as:
co-linear sample excitation, diffuse reflectance, saddle support for cryostat.
 
Data Acquisition:
Up to 10 points per ns sampling rate, linear and logarithmic timebase options, digital
oversampling (up to 4,000,000 samples per kinetic acquisition). ASCII data format.
 
Interlock unit:
to protect against the accidental application of the ignition pulse when other electronic
equipment in the immediate vicinity of the lamp housing is running.
 
Spectrometer control unit / sequencer:
configured for 10Hz, 20Hz or single shot operation. All
spectrometer operational sequences can be also executed from the spectrometer
controller itself, ie. independent of the workstation
 
Control Software: ProData:
full control of spectrometer including multiple kinetic measurements for data averaging and automated acquisition of time-resolved transient absorbance spectra, comprehensive data display and transformation tools and analysis by non-linear least squares (Marquardt-Levenberg) algorithm
 
Global analysis software - ProK:
enables SVD and global analysis of multi-wavelength kinetic data. Uses numerical integration in combination with a reaction scheme editor to enable straightforward fitting to virtually any reaction mechanism. Suitable also for single wavelength analysis. Includes data simulation facility.
 
Standard accessory options include:
co-linear sample excitation, diffuse reflectance, second programmable monochromator, 9-stage detector housing (for low light applications), slow-flash accessory, upgrade to combined research-grade stopped-flow spectrometer (fully automated, 1ms dead-time, low volume usage, absorbance and fluorescence capability & full range stopped-flow options).


應用分析:

1. 蛋白質折疊效應快速動態研究
2. 蛋白質結構內部反應/鍵結快速動態研究
3. 蛋白質安定性/反應機制/品質控制
4. 螢光共振能量轉移反應研究
5. 酵素反應機制快速動態研究
6. 快速掃描時間解析反應研究
7. 有機/無機化學物質快速動態反應研究
8. 酶促反應快速動態研究
9. 配位體反應快速動態研究
10. 藥物蛋白結合反應快速動態研究
11. DNA配位體反應快速動態研究



相關選購/附件:

停留光譜儀及相關應用裝置、數位化示波器、線性對應的樣品激發分析、擴散反射裝置、二級程式化單光器、低速閃光變異量應用分析、近紅外光偵測應用分析、連續式混合器、光矽二極體檢測器、螢光偏振分析裝置、激流反應裝置