PTI--NIR

Specifications

Steady State Light Source
Phosphorescence Light Source
Excitation and Emission Monochromator
Sample Compartment
Detector
Software

Steady State Light Source Specifications

Signal to noise ratio	10,000:1 or better

Data acquisition rate	1000 points/sec. to 1 point/100 sec.

Wavelength range	180 nm to 24 microns, continuously tunable (useful illumination wavelength range dependent on grating and lamp; useful detection wavelength range dependent on grating and photomultiplier tube)

Bandwidth	0 to 25 nm, continuously variable

Detection range	185 to 680 nm with standard 1527 PMT (extended range to Near IR available)

High voltage range	-200 to -1,100 VDC

Resolution	0.2 nm

Accuracy	+/- 0.5 nm

Phosphorescence Light Source Specifications

Lamp type	Pulsed xenon source

Wavelength range	From 200 to 2,000 nanometers

Pulse repetition rate	From 1 to 300 pulses per second

Pulse width	Approximately 2 microseconds

Pulsed excitation correction	PMT-based

Excitation and Emission Monochromators
Using standard 1200 line/mm ruled grating

QuadraScopic™ monochromator

Focal length	200 mm

Aaperture ratio	f/4

Optical configuration	Czerny-Turner configuration

Wavelength range	180 nm to 24 microns with appropriate grating

Bandpass	Continuously adjustable from 0 to 25 nm

Resolution	0.5 nm

Accuracy	+/-1 nm (using manual wavelength control) +/- 0.25 nm (using motorizing option under computer control)

Reproducibility	+/-1 nm

Minimum step size	0.25 nm

Reciprocal linear dispersion	4 nm/mm

Throughput	60% at 300 nm

Scattered light	0.02% two bandwidths from 365 nm Hg line

Optical path height	76 mm

Grating size	50 x 50 mm

Gratings

Excitation grating	1,200 l/mm blazed at 500 nm

Emission grating	600 groove grating blazed at 1.2 microns

Options	An extensive selection of gratings, ruled and holographic, optimized from 75–2400 grooves/mm are available

Monochromator Options

Slits	Optional computer-controlled (patent pending) slits or micrometer slits

Dual gratings	To efficiently cover an extended wavelength range

Double monochromators	Double monochromators for lower stray light (useful for highly scattering samples such as suspensions or solids)

QuadraCentric™ Sample Compartment Specifications

Ports	Four ports to accommodate various light sources and detectors

Configurations	L, T or X-formats

Optics	Quartz optics for optimum sample illumination and emission signal collection

Cuvette	One 10 x 10 mm quartz cuvette included

Cuvette holder	Thermostatable 10 x 10 mm cuvette holder (requires external water bath, not included)

Sample stirrer	Variable speed

Emission shutter	Lid-activated emission shutter to protect sensitive detectors

Filter holders	Excitation and emission filter holders accommodate 2 inch square or 1 inch diameter round filters

Sample injection	Yes

Gas purgeable	Yes

Detectors
PTI offers a variety of NIR detectors for both steady state and Phosphorescence detectors offering the customer the choice of the best detector to meet their needs:

Steady State NIR PMT Specifications

Model

SS1.4R

SS1.4X

SS1.7R

SS1.7X

Detector type

NIR PMT

Application

Steady State

Spectral range

300–1400 nm

950–1400 nm

300–1700 nm

950–1700 nm

Cooling method

Liquid N₂

Operation temperature

-80°C

-60°C

-80°C

-60°C

Minimal measurable lifetime

N/A

Phosphorescence NIR PMT Specifications

Model	P 1.4R	P 1.4X	P 1.7R	P 1.7X

Detector type	NIR PMT	NIR PMT	NIR PMT	NIR PMT

Application	Time-Resolved	Time-Resolved	Time-Resolved	Time-Resolved

Spectral range	300–1400 nm	950–1400 nm	300–1700 nm	950–1700 nm

Cooling method	Liquid N₂	TE	Liquid N₂	TE

Operation temperature	-80°C	-60°C	-80°C	-60°C

Minimal measurable lifetime	500 ns	500 ns	500 ns	500 ns

Steady State InGaAs PMT Specifications

Model	TE1.7

Detector type	InGaAs diode

Application	Steady State

Spectral range	800–1900 nm

Cooling method	TE

Operation temperature	-30°C

Minimal measurable lifetime	N/A

NIR

Software and Electronics
Windows based FeliX32™. FeliX32™ uses full 32-bit implementation graphics capabilities, including sophisticated 3-dimensional plotting and full motion rotation. All major data handling packages are included: multi-exponential fits, global analysis, non-exponential analysis, anisotropy decay as well as fluorescence lifetimes.