EPPENDORF BIO PHOTOMETER 6131 230, 260, 280, 320, 562,595nm 0.1nm 90DAYWARRANTY

This listing is used For Parts Condition EPPENDORF BIO PHOTOMETER 6131 230, 260, 280, 320, 562,595nm <0.1nm as can be seen in the pictures. 

Unit came from a Federal University as can be seen in the pictures. 

Picture is actual item buyer will receive.

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TECHNICAL INFORMATION IN ITALICS BLUE BELOW WAS TAKEN FROM THE WEB:

marshallscientific.com/v/vspfiles/specs/BP%20specs.pdf

Eppendorf BioPhotometer Model #6131

The Eppendorf BioPhotometer Model #6131 is used for rapid, simple, and convenient measurement of many different research methods including measurement of nucleic acids, proteins, and bacteria density through photometric principles. The single-beam photometer with reference beam and several fixed wavelengths make this photometer extremely efficient within the lab with exceptional reliability and repeatability. The high quality components guarantee high operating reliability while the metal housing ensures operating stability.

Eppendorf BioPhotometer Model #6131 Specifications:

Photometer

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: Xe 230, 260, 280, 320, 562, 595 nm

Wavelength selection: Method-dependent, program-controlled

Spectral bandwidth: 5 nm at 230 to 320 nm

7 nm at 562 to 595 nm

Wavelength systematic error: ± 1 nm at 230 to 280 nm

± 2 nm at 320 to 595 nm

Wavelength random error: ≤ 0.1 nm

Photometric measuring range: Quartz glass cuvette: 0.000 to 3.000 A

UVette® (Eppendorf): 2.5 A at 230 nm

2.6 A at 260 nm

2.8 A at 280 nm

2.9 A at 320 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 proportion: < 0.05 %

Radiation detector: Silicium photo diodes

Measuring procedures

Measuring procedure: End-point against blank

Method-dependent

calculation: Absorbance

Concentration via factor

Concentration via Warburg formula

Concentration via calibration with 1 to 10 standards

One-point calibration (1 standard)

Linear regression (2 to 10 standards)

Non-linear regression

(3rd degree polynomer; 4 or 5 to 10 standards;

see Section 12, "Calculation")

1 x, 2 x or 3 x determination

For nucleic acids:

Ratio 260/280

Ratio 260/230

Molar concentration

Total yield

Memory

Method memory: 12 preprogrammed, modifiable method programs

Calibration memory: For all calibration procedures

Results memory: For 100 results with absorbance and ratio values,

sample number, sample dilution, date and time (calendar up to 2090)

Used and in excellent working order.

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Stock # 231902