Core parameters of Lambda 650/850/950 UV Visible spectrophotometer (PerkinElmer)

• Automatic degree
  Automatic wavelength
• wavelength range
  UV Visible Near Infrared
• Receiver class
  Photomultiplier tube (PMT)
• Instrument structure
  double beam

Instrument Introduction:

The Lambda 650/850/950 UV/Vis/NIR spectrophotometer is manufactured by PERKINELMER based on years of advanced experience, representing the highest level of dual beam, dual monochromator system ratio UV/Vis/NIR spectrophotometer in the world.
Wavelength range: Lambda 650 is 190-900nm, Lambda 850 is 175-900nm, Lambda 900 is 175-3300nm,; The entire machine and optical system adopt aerospace technology hardware: the entire optical system uses holographic line gratings coated with SiO2 (with 1440 ultraviolet/visible lines/mm and 360 near-infrared lines/mm); The use of the most advanced four zone segmented fan-shaped signal collection chopper ensures that the most accurate sample and reference signals are obtained each time (during the operation of the chopper, the sample and reference signals are separately corrected by their respective black zone signals, with the highest wavelength accuracy: 0.08nm in the ultraviolet/visible region);
Adopting pre calibrated iodine tungsten lamps and hydrogen lamps that can be automatically switched; High sensitivity photomultiplier tubes are used throughout the entire ultraviolet/visible region; Spacious sample compartment: can accommodate various accessories and adjust the optical path to the best, with the most optional accessories (such as integrating spheres, fixed/variable angle relative/absolute mirror reflection accessories, etc.), good stability, baseline flatness, and low stray light. The instrument is extremely stable and durable. Wide linear range: 8A; multiple software options available: UV Winlab operation software package (standard configuration, including enzyme kinetics KinLab and biochemical methods BioLab), ASSP advanced software package (including module functions such as chromaticity, filter, architectural glass, protective glass, mathematical operations, and databases).

Main features:

1. Host:
Dual beam, dual monochromator, proportional recording and computer-controlled ultraviolet/visible (/near-infrared) spectrophotometer.

2. Optical system:
The entire optical system adopts reflective optical elements coated with SiO2 protective layer, and the holographic line grating has the highest line density (1440 lines/mm for ultraviolet/visible and 360 lines/mm for near-infrared); The use of the most advanced four zone segmented fan-shaped signal collection chopper ensures that the most accurate sample and reference signals are obtained each time (during the operation of the chopper, the sample and reference signals are separately corrected by their respective black zone signals, with the highest wavelength accuracy: 0.08nm in the ultraviolet/visible region);

The most advanced four zone segmented chopper for collecting sector signals: namely sector signal correction technology (CSSC)
The data collection sequence is: sample/black area/reference/black area

3. The standard wavelength range of the instrument is wide:
Lambda 650: 190～900nm
Lambda 850: 175-900nm (below 185nm requires nitrogen purging)
Lambda 950: 175-3300nm (below 185nm requires nitrogen purging)

4. The linear range of the instrument is wide:
UV/Visible Region: 8 A (Lambda 850/950)
6 A (Lambda 650)
The linear range of the instrument is determined by the size of the stray light, and the same stray light determines the same linear range
This allows users to measure low transmission and reflection samples with the required and desired accuracy

5. The standard configuration of the instrument has powerful functions:
By using a software controlled beam blocker, there are no issues with testing small samples;
The software controlled reference and sample beam attenuator enable the instrument to "almost measure the last photon of the sample" (without increasing costs or occupying space in the sample chamber);
The optimal signal-to-noise ratio can be obtained without smoothing the raw data (the sensitivity of the high-performance photomultiplier tube R6872 is 4 times higher than that of R928);

6. Provide a solution for the entire product:
Suitable for samples of various sizes - large samples are measured using a universal optical table (GPOB);
Provide technical solutions for users - the ability to perform routine analysis, Q-COM (Fast Optical Stage Mode Change)
The concept of quickly replacing and installing various accessories such as integrating balls and reverse
Shooting accessories, universal optical table

Universal Optical Table (GPOB) Q-COM Concept (Fast Optical Table Mode Transformation)

The optional detector can meet the special needs of users for testing scattering and turbid samples - for difficult samples, an integrating sphere detector can be provided;

Provide software solutions for users: UV WinLab software has powerful functions and can provide expert mode to run instruments, providing users with optimal instrument parameters (experimental conditions). It can also provide software for special applications such as mathematical operations, chromaticity, architectural glass, protective glass, filters, and databases (advanced spectral software toolkit ASSP);

7. The most complete attachments available:
Diffuse reflection accessories: 60mm/150mm integrating sphere, small sample point double cone (diffuse reflection) accessories;

150mm Integral Ball
Testing of small samples with a diameter of 1.5-2mm (such as gemstones)

Collecting sphere: 60mm integrating sphere, suitable for use with mirror reflection attachments and large angle transmission measurements;
Mirror reflection accessories: In addition to a series of commonly used fixed angle and variable angle absolute/relative mirror reflection accessories, the latest exclusive release is:
The universal reflection and transmission measurement attachment URA is exclusively available in the world. It can set multiple angles of reflection within 8-70 degrees and 185-3200 nm using computer software. It automatically controls the continuous angle "blank sample blank sample" cycle and can measure the absolute and relative specular reflection of materials. There is no limit to the sample size! Transmission mode measurement can also be performed.

Unique hardware and software of URA
Directional relative mirror reflection/transmission attachment (capable of high-precision measurement of material transmission or reflection modes at positive and negative angles of 1-80 degrees, including polarizer and two reflective standard mirrors);

Absolute oriented VW type mirror reflection attachment (capable of high-precision measurement of transmission or reflection modes of mirror materials at positive and negative angles of 8-80 degrees, including laser collimation and polarizer, and two reflective standard mirrors);

Double light bar attachment (can correct the non-linear error of the detector, thereby improving the linear range of the instrument and the accuracy of the photometer);

Polarizer (oscillator) and depolarizer (oscillator):
GPOB: A pioneering multifunctional sample stage used for testing large samples or finished products (such as large laser crystals, telescope lenses, camera lenses, automotive glass, etc.)

Fiber optic accessories:
Large measuring tools for optical filters and semiconductor chips
Peristaltic pump suction device
Multi pool bracket
Linear transmission and gel (film, filter) scanning accessories (matching slit adjustment accessories can be selected to change the size of sample and reference beam)

8. Widely applicable fields:
Optics, coatings, chromaticity, materials, glass, biotechnology, pharmaceuticals, transportation, communication

Friendly reminder: The price of the instrument may vary depending on the model and configuration. For more details, please contact our company.