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Spectrophotometer

A spectrophotometer is a scientific instrument that measures the amount of light of a specified wavelength which passes through a medium. According to Beer’s law, the amount of light absorbed by the medium is proportional to the concentration of the absorbing material or solute present. Marshall Scientific always has spectrophotometers in stock made by notable brands such as Agilent, Milton Roy, and Beckman. All of Marshall Scientifics spectrophotometers are tested to perform at factory specifications. Please view our inventory of spectrophotometers and feel free to give us a call or send us an email if you have any questions.

Spectrophotometers
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Molecular Devices Spectramax 340PC  Microplate Reader Molecular Devices SpectraMax 340PC Microplate Reader

Molecular Devices SpectraMax 340PC Microplate Reader Specifications

Performance Specifications

Wavelength Range:

340 - 850 nm
Wavelength Selection Monochromator, tunable 1.0 nm increments
Wavelength Bandwidth 2 nm
Wavelength Accuracy < ± 2.0 nm
Wavelength Repeatability ± 0.2 nm
Photometric Range: 0.0 to 4.0 OD
Photometric Resolution 0.001 OD
Photometric Accuracy < ± 0.006 OD ± 1.0%, 0.0 - 2.0 OD
Photometric Precision: < ± 0.003 OD ± 1.0%, 0.0 - 2.0 OD
Light Source Xenon flash lamp
Endpoint: 12 seconds
Kinetic: 9 second minimum interval
Temperature Range: Ambient + 4 °C up to 45 °C
Temperature Uniformity: ± 0.5 °C @ 37 °C

Our Price: $6,515.00
Deal of the Month Price: $5,595.00
Money Saved: $920.00
Agilent 8453 G1103A  Spectrophotometer Agilent 8453 G1103A Spectrophotometer

Agilent 8453 Spectrophotometer Specifications

Wavelength range190 - 1100 nm
Slit width1 nm
Resolution> 1.6
Stray light

< 1.0 % At 200 nm, solution of 1.2% KCl, blank scan on air, 5 s integration

time; (EP*method)**

< 0.05 % At 220 nm, solution of 10 g/l NaI, blank scan on air, 5 s integration

time; (ASTM method)

< 0.03 % At 340 nm, solution of 50 g/l NaNO2, blank scan on air, 5 s integration

time; (ASTM method
Wavelength accuracy< ± 0.5 nm
Wavelength reproducibility< ± 0.02 nm

Photometric accuracy< ± 0.005 AU

Photometric noise< 0.0002 AU rms

Photometric stability < 0.001 AU/h
Baseline flatness< 0.001 AU rms
Typical scan time1.5 s
Shortest scan time0.1 s
Time until next scan 0.1 s

Our Price: $7,285.00
Molecular Devices SpectraMax 384 Plus Microplate Reader Molecular Devices SpectraMax 384 Plus Microplate Reader

Molecular Devices SpectraMax 384 Plus Microplate Reader Specifications

Spectral Range

190-1000 nm, tunable in 1 nm increments

Wavelength Range

190-1000 nm

Wavelength Selection

Monochromator, tunable 1.0nm increments

Speed Read Mode

Reads 96-well microplates in 5 seconds; Reads 384-well microplates in 16 seconds

Wavelength Bandwidth

2 nm

Wavelength Accuracy

< ± 1.0 nm

Wavelength Repeatability

± 0.2 nm

Photometric Range

0.0 to 4.0 OD

Photometric Resolution

0.001 OD

Photometric Accuracy (plate)

< ± 0.006 OD ± 1.0%, 0.0 - 2.0 OD

Photometric Accuracy (cuvette)

< ± 0.005 OD ± 1.0%, 0.0 - 2.0 OD

Photometric Precision

< ± 0.003 OD ± 1.0%, 0.0 - 2.0 OD

Photometric Baseline Flatness

< 0.001 OD

Stray Light

< 0.05% @ 230 nm

Light Source

Xenon Flash Lamp

Temperature Range

Ambient + 4°C up to 45°C

Temperature Uniformity (plate)

± 0.5 °C @ 37°C

Our Price: $9,195.00
Molecular Devices SpectraMax M2 Multilabel Microplate Reader Molecular Devices SpectraMax M2 Multilabel Microplate Reader

Molecular Devices SpectraMax M2 Multilabel Microplate Reader Specifications

Absorbance Photometric Performance

Wavelength Selection

Monochromator, tunable in 1 nm increments

Wavelength Range

200 to 1000 nm

Wavelength Bandwidth

≤ 4.0 nm

Wavelength Accuracy

± 2.0 nm

Wavelength Repeatability

± 0.2 nm

Photometric Range

0 to 4.0 OD

Photometric Resolution

0.001 OD

Photometric Accuracy (Microplate)

< ±0.006 OD ±1%, 0 to 2 OD

Photometric Accuracy (Cuvette)

< ±0.005 OD ±1%, 0 to 2 OD

Photometric Precision

< ±0.003 OD ±1%, 0 to 2 OD

Baseline Flatness

< 0.001 OD

Stray Light

< 0.05% @ 230 nm

Fluorescence Photometric Performance

Dual Monochromators

1 nm increment selection

EX Wavelength Range

250 to 850 nm

EM Wavelength Range

250 to 850 nm

Wavelength Bandwidth (EX, EM)

9 nm

Top-Read Optimized Sensitivity

5 pM (fluorescein) in 96 wells

Top-Read Guaranteed Sensitivity

15 pM (fluorescein) in 96 wells

Time-Resolved Fluorescence (secondary mode)

Wavelength Range

360 to 850 nm

Data Collection

50 to 1450 µsec., 200 µsec. increments

Guaranteed Sensitivity

7 pM Eu-chelate

Luminescence (secondary mode)

Wavelength Range

360 to 850 nm

Guaranteed Sensitivity

50 fM alkaline phosphatase

General Photometric Performance

Plate Formats

6, 12, 24, 48, 96, 384 wells

Light Source

Xenon flash lamp (1 joule/flash)

Detector

Photomultiplier tube (PMT)

Read Time

96 wells: Abs 18 sec., Fl 15 sec.

384 wells: Abs 49 sec., Fl 45 sec.

Shaker Time

0 to 999 seconds

Temperature Control

Ambient +4°C to 45°C

Temperature Uniformity

< 1°C at 37°C set point

Temperature Accuracy

±1°C at 37°C set point

Our Price: $16,305.00
Molecular Devices Spectramax 190 Microplate Reader Molecular Devices Spectramax 190 Microplate Reader

Molecular Devices Spectramax 190 Microplate Reader Specifications

Performance Specifications

Wavelength Range:

190 - 850 nm

Wavelength Selection

Monochromator, tunable 1.0 nm increments

Wavelength Bandwidth

2 nm

Wavelength Accuracy:

< ± 2.0 nm

Wavelength Repeatability

± 0.2 nm

Photometric Range

0.0 to 4.0 OD

Photometric Resolution

0.001 OD

Photometric Accuracy

< ± 0.006 OD ± 1.0%, 0.0 - 2.0 OD

Photometric Precision

< ± 0.003 OD ± 1.0%, 0.0 - 2.0 OD

Stray Light

< 0.05% @ 230 nm

Light Source:

Xenon flash lamp

Endpoint:

12 seconds

Kinetic:

9 second minimum interval

Temperature Range

Ambient + 4 °C up to 45 °C

Temperature Uniformity:

± 0.5 °C @ 37 °C

Our Price: $6,515.00
Eppendorf BioPhotometer Model #6131 Eppendorf BioPhotometer Model #6131

Eppendorf BioPhotometer Model #6131 Specifications

Our Price: $2,685.00
Eppendorf BioPhotometer Plus Model #6132 Eppendorf BioPhotometer Plus Model #6132

Eppendorf BioPhotometer Model #6132 Specifications

Optical system

Absorption single-beam photometer with reference beam and several fixed wavelengths

Irradiation source

Xenon flash lamp

Spectral dispersion

Holographic concave grating

Measuring wavelengths

230, 260, 280, 340, 405, 490, 550, 595, 650 nm

Wavelength selection

Method-dependent, program controlled

Spectral bandwidth

5 nm at 230 to 340 nm

7 nm at 405 to 650 nm

Wavelength systematic error

± 1 nm at 230 to 280 nm

± 2 nm at 340 to 650 nm

Photometric random error

≤ 0.002 A at 0 A

≤ 0.005 A at 1 A

Photometric systematic error

± 1% at 1 A

Accuracy of reading

0.001 A

Stray-light component

< 0.05%

Memory

32 preprogrammed, modifiable method programs

Supply voltage

100 to 240 V ± 10%: 50 to 60 Hz

Dimensions (W x D x H)

20 x 32 x 10 cm

Weight

3 kg

Our Price: $3,255.00