Facilities | xraysatcena

If you are interested in chemical or structural analysis by any of our facilities, please contact us via the form on the bottom of this page.

Benchtop Energy Dispersive X-ray Fluorescence

Energy dispersive X-ray fluorescence, known as EDXRF, is a non-destructive analytical tool that allows quali and quantitative analysis. All elements above Mg can be detected at the ppm (mg kg-1 or mg L-1). The sample preparation is minimum. Usually, it only involves grinding for homogenization.

Samples analyzed by EDXRF:

Leaves and other vegetal tissues
Soils and mineral samples
Foods such as flour, sugar or salt
Liquids such as vegetal or mineral oils
Rain or fluvial water

Total Reflection

X-ray Fluorescence

Total reflection X-ray fluorescence (TXRF) has the same components as EDXRF:

X-ray source, sample holder and X-ray detector. However, in TXRF these devices are displaced in a particular geometry. The X-rays are totally reflected by the substance, thus the signal/noise ratio is dramatically increased bringing detection limits to ppb level (ug kg-1 and ug L-1).

Samples analyzed by TXRF:

Soils suspensions
Liquids such as vegetal or mineral oils
Rain or fluvial water

Micro Energy Dispersive X-ray Fluorescence

Common bean leaf

The Orbis Micro-XRF Analyzers allow us to get advanced non-destructive elemental analysis with the flexibility to work across a wide range of sample types and shapes. At CENA, the laboratory has, specifically, the Orbis PC Micro-XRF. It is an upgraded model that is exceptionally well suited to analyze smaller samples or make faster measurements. It is delivered with an advanced, LN-Free X-ray silicon drift detector (SDD), enhanced color video camera with 3x digital zoom, and a 30 µm polycapillary lens. The Orbis PC’s sample positioner has an upgraded XYZ stage with higher-precision sample positioning.

Funded by:

Multi-user Program

FAPESP 2015/19121-8

Samples analyzed:

Leaves, roots and seeds
Rocks, stones and soils
Bones, teeth and soft tissues
Electronic circuits

For details click here

Handheld X-ray Fluorescence

Handheld EDXRF is a miniaturized version of benchtop EDXRF. Nevertheless, the portability opens limitless opportunities. Elements from Mg can be identified and quantified. Our group is especially comitted to the development of methods to access plant nutritional state in vivo, in field and real time. The equipment weights nearly 2 kg, it has an optical camera which allows to precisely determine the sampled area. The X-beam size probing the sample is nearly 2 x 3 mm. In principle, any kind of sample can be analyzed.

Funded by:

FINEP 01.12.0535.00

Handheld pHmeter and Conductivity meter

Handheld pHmeter and Conductivity meter is a miniaturized version of benchtop pHmeter and conductivity meter. Because of its size and facility, it is possible to take it anywhere.

x-123SDD X-ray Spectrometer

The X-123SDD combines Amptek’s high performance X-ray spectroscopy components in a single package:

XR-100SDD silicon drift X-ray detector and preamplifier
DP5 digital pulse processor (DPP) and MCA
PC5 power supply

The result is an extremely compact system with no performance compromise. It requires only +5 VDC power and a standard communication interface. With the X-123SDD and an X-ray source, anyone can rapidly obtain high quality X-ray spectra.

Fisherbrand™ Model 705 Sonic Dismembrator

It is a full-featured, programmable ultrasonic processor with an easy to use touchscreen control and overload protection. Ultrahigh power with advanced programming for DNA shearing/ChIP and all liquid processing applications.

Photons for Agriculture and Environment

Benchtop Energy Dispersive X-ray Fluorescence

Energy dispersive X-ray fluorescence, known as EDXRF, is a non-destructive analytical tool that allows quali and quantitative analysis. All elements above Mg can be detected at the ppm (mg kg-1 or mg L-1). The sample preparation is minimum. Usually, it only involves grinding for homogenization.

Samples analyzed by EDXRF:

Leaves and other vegetal tissues

Soils and mineral samples

Foods such as flour, sugar or salt

Liquids such as vegetal or mineral oils

Rain or fluvial water

​

​

Total Reflection

X-ray Fluorescence

Total reflection X-ray fluorescence (TXRF) has the same components as EDXRF:

X-ray source, sample holder and X-ray detector. However, in TXRF these devices are displaced in a particular geometry. The X-rays are totally reflected by the substance, thus the signal/noise ratio is dramatically increased bringing detection limits to ppb level (ug kg-1 and ug L-1).

Samples analyzed by TXRF:

Soils suspensions

Liquids such as vegetal or mineral oils

Rain or fluvial water

​

​

Micro Energy Dispersive X-ray Fluorescence

Common bean leaf

Funded by:

Multi-user Program

FAPESP 2015/19121-8

Samples analyzed:

Leaves, roots and seeds

Rocks, stones and soils

Bones, teeth and soft tissues

Electronic circuits

​

Handheld X-ray Fluorescence

Funded by:

FINEP 01.12.0535.00

Handheld pHmeter and Conductivity meter

Handheld pHmeter and Conductivity meter is a miniaturized version of benchtop pHmeter and conductivity meter. Because of its size and facility, it is possible to take it anywhere.

x-123SDD X-ray Spectrometer

The X-123SDD combines Amptek’s high performance X-ray spectroscopy components in a single package:

​​

XR-100SDD silicon drift X-ray detector and preamplifier

DP5 digital pulse processor (DPP) and MCA

PC5 power supply

​

The result is an extremely compact system with no performance compromise. It requires only +5 VDC power and a standard communication interface. With the X-123SDD and an X-ray source, anyone can rapidly obtain high quality X-ray spectra.

Fisherbrand™ Model 705 Sonic Dismembrator

It is a full-featured, programmable ultrasonic processor with an easy to use touchscreen control and overload protection. Ultrahigh power with advanced programming for DNA shearing/ChIP and all liquid processing applications.