LABORATORIES AND FACILITIES

Training Courses on Safety for Equivalent Workers

Training Courses on Safety for Equivalent Workers
Safety Training for all students of the Department of Earth, Environmental, and Resource Sciences to undertake laboratory activities, geological field campaigns, educational exercises, research, and internships.
(Note: For the activation of internal internships, please pay attention to the additional provisions available at the following link.)

All university students (undergraduates, doctoral candidates, specialists, interns, scholarship holders, research fellows, and equivalent individuals) who attend educational, research, or service laboratories and are exposed to risks identified in the risk assessment document are considered equivalent to workers. As such, they are subject to preventive and protective measures to safeguard their health and safety.

It is clarified that laboratories are considered as locations or environments where educational, research, or service activities are carried out, involving the use of machinery, equipment, plants, prototypes, or other technical tools, as well as chemical, physical, or biological agents. Additionally, locations or environments outside the constructed areas of the premises—such as archaeological, geological, or marine field campaigns—are also regarded as laboratories.

Before commencing activities involving exposure to risks, every university student (so-called "equivalent worker") is required to:

  1. Undergo a health surveillance examination.
  2. Complete the online course "Basic Training on Workplace Health and Safety" (4 hours).
  3. Attend a specific risk training course.

The Health Surveillance Examination will be requested by the tutor/professor/supervisor overseeing the laboratory activity and at the time of assigning the experimental thesis work. Notifications regarding the health surveillance examination schedule are published on the Course of Study's dedicated webpage.

The online course "Basic Training on Workplace Health and Safety" requires a 4-hour commitment (as specified in letter a) of paragraph 1 of Article 37 of Legislative Decree No. 81/08 and the State-Regions Agreement of 21/12/2011). A participation certificate is issued upon passing the final verification test.

The course is available at the following link on the Federica.eu platform:
https://www.federica.eu/partners/formazione-unina/

Access requires the use of active UNINA credentials (name.surname@studenti.unina.it).

To access the course, it is necessary to enter the access code of your department, which can be found by clicking here: https://www.unina.it/documents/11958/21142433/FORM_elenco.codici.accesso.pdf

User support and guidelines for proper course participation can be found at the following link:
https://www.unina.it/documents/11958/21142433/FORM_indicazioni.corsi.pdf

XRF

Responsible: Prof. Ciro Cucciniello
Co-Responsible: Prof. Lorenzo Fedele
Location: L2 - T-07
Telefono: +39 0812538476 - This email address is being protected from spambots. You need JavaScript enabled to view it.

 

DESCRIPTION OF ACTIVITIES

In the X-ray fluorescence "XRF" laboratory, the chemical analyses of major, minor and trace elements (quantitative and qualitative) are determined on samples of rocks, clays, ceramics, and bricks. The main research activities concern:

- Igneous petrogenesis;

- Archaeometry;

- Research projects conducted within the Department;

- Third party.

LABORATORY EQUIPMENT

Axios Panalytical sequential wavelength dispersion spectrometer (Fig.1), equipped with Rh tube, 6 analyzer crystals (LiF220, LiF200, LiF420, PE002, PX1, TlAP), 3 collimators ((150 μm, 550 μm and 700 μm), 4 filters (Al 200 μm, Al 750 μm, Brass 100 μm, Brass 400 μm) and 2 counters (gas flow counter and scintillator).

Calibration is based on 45 reference standards (K.P. Jochum, J. Enzweiler, 2014, 15.3 - Reference Materials in Geochemical and Environmental Research, Treatise on Geochemistry (Second Edition), Elsevier, Pages 43-70, https://doi.org/10.1016/B978-0-08-095975-7.01403-0). The reference standards are natural geological samples. The software used for the measurements is SuperQ (Fig.2).

Analytical uncertainty is in the order of 1-2% for major elements and 5-10% for trace elements.

 

Routine analysis of a sample

a. Determination of loss on ignition (L.O.I.).

b. Use of the sample powders to prepare the pressed powder pellets.

c. Sample analysis using the Axios Panalytical spectrometer.

 

a. Determination of loss on ignition (L.O.I.): a known amount of sample is heated in a furnace at

950°C for about 4 hours, after overnight drying in an oven at 110 °C to drive away adsorbed moisture (H2O−).

 

b. Sample preparation for XRF analysis: samples for XRF analysis are pressed powder pellets obtained with 4 grams of homogenized powder (to maintain the statistical value of the original sample) and pressed to obtain a tablet.

 

c. Sample analysis using the Axios Panalytical spectrometer.

Elements analysed                         Detection limit

SiO2     wt.%                                        > 130 ppm

TiO2     wt.%                                        > 10 ppm

Al2O3   wt.%                                        > 85 ppm

Fe2O3t  wt.%                                       > 16 ppm

MnO    wt.%                                        > 6 ppm

MgO    wt.%                                        > 85 ppm

CaO     wt.%                                        > 35 ppm

Na2O   wt.%                                        > 85 ppm

K2O      wt.%                                        > 40 ppm

P2O5    wt.%                                        > 30 ppm

Rb        ppm                                        > 1 ppm

Sr         ppm                                        > 1 ppm

Y          ppm                                        > 0.7 ppm

Zr        ppm                                        > 1.8 ppm

Nb       ppm                                        > 0.8 ppm

Ba        ppm                                        > 15 ppm

Cr        ppm                                        > 2.5 ppm

Ni        ppm                                        > 1.8 ppm

Sc        ppm                                        > 2.7 ppm

V          ppm                                        > 5 ppm

Co        ppm                                        > 0.8 ppm

Cu        ppm                                        > 0.8 ppm

Zn        ppm                                        > 2 ppm

Ga       ppm                                        > 1 ppm

La        ppm                                        > 15 ppm

Ce        ppm                                        > 10 ppm

Yb        ppm                                        > 0.5 ppm

Hf        ppm                                        > 0.5 ppm

Ta        ppm                                        > 0.8 ppm

Pb        ppm                                        > 1 ppm

Th        ppm                                        > 3.5 ppm

U         ppm                                        > 0.8 ppm

F          ppm                                        > 25 ppm

Cl         ppm                                        > 1 ppm

S          ppm                                        > 1 ppm

According to the Radioprotection regulations, access for non-classified personnel (visitors) is permitted provided they are accompanied by laboratory personnel. Access is forbidden to pregnant visitors.

xrf1

Fig.1 Axios Panalytical sequential wavelength dispersion spectrometer

 

xrf2

Fig.2 PC in communication with the spectrometer via SuperQ program

 

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