PolyPen-Aqua

The PolyPen-Aqua PA 210 is a portable, handheld, and affordable spectrophotometer. It is convenient for quick and reliable measurements of absorbance and transmittance in liquid samples between 380 – 790 nm and 640 – 1050 nm respectively. Samples are measured in standard cuvettes. The PA 210 features an inbuilt GPS module and can be used as a self-contained instrument for various field applications.

Sophisticated handheld alternative to benchtop spectrophotometers

Lightweight, affordable, self-contained device

Suitable for lab and field applications

Programmable via intuitive touch-screen display

Comprehensive and user-friendly software allowing custom calculations programming

PolyPen-Aqua PA 210 is a portable, handheld and reasonably priced spectrophotometer intended for measuring spectra in suspensions. It can be used favorably in a wide range of applications – biotechnology, limnology, ecology, molecular biology, chemistry, forensic science etc. The device is convenient both for standard laboratory work and for field work, well using its inbuilt GPS unit. The PolyPen-Aqua measures absorbance and transmittance spectra based on a single beam method; detection range is 380 – 790 nm and 640 – 1050 nm. The device is equipped with an internal light source - Xenon incandescent lamp.

PolyPen-Aqua can be used as an autonomous instrument. It is powered by an inbuilt Li-Ion rechargeable battery and thus it does not require a PC or any other bulky accessory for its operation. Measured spectra are instantly displayed in graphs or data sheets on the device touch screen. Full spectra information is stored in the device memory for later re-analysis in a PC. The important part of the PA 210 package is the control software. It allows user-friendly, online control of the device as well as measured data saving, uploading and further processing in a PC. Definition of custom calculated parameters based on measured spectra is also possible.

APPLICATIONS Qualitative and quantitative analysis of liquids and solutions Growth monitoring of autotrophic and heterotrophic microorganisms Vital spectra of cell suspensions Pigment composition Protein analysis

Qualitative and quantitative analysis of liquids and solutions

Growth monitoring of autotrophic and heterotrophic microorganisms

Vital spectra of cell suspensions

POLYPEN-AQUA MEASURES Absorbance spectrum , calculated using following formula A=log(I 0 /I)

Absorbance spectrum , calculated using following formula

I 0 is reference light intensity and I is measured light intensity

Transmittance spectrum , calculated using following formula T= I/ I 0

Transmittance spectrum , calculated using following formula

Optical density measurement at 600 nm, 680 nm, 720 nm, and 750 nm Custom defined calculation

Optical density measurement at 600 nm, 680 nm, 720 nm, and 750 nm

Custom defined calculation

SOFTWARE Online control of the PolyPen-Aqua device GPS mapping plug-in Visualization of complete spectra as well as the table of calculated parameters Calculation of custom indices possible Different operation modes: scope, absorbance, transmittance Different tools: zoom, marker, auto scale, curve smoothing Data browsing and data averaging Data transfer routines to Microsoft Excel SpectraPen 1.1 software (Windows, XP, or higher compatible)

Online control of the PolyPen-Aqua device

Visualization of complete spectra as well as the table of calculated parameters

Calculation of custom indices possible