[Audio] Now let's look into our case study for XRF sample preparation by using pressed pellet. The title for the case study is Fired pressed pellet as a sample preparation technique of choice for an energy dispersive X-ray fluorescence analysis of raw clays, and in this study, they tested 3 types of sample preparation procedures which are the loose powder, pressed pellet, and fired pressed pellet for raw clay and comparing each methods based on the recoveries, limit of detection , limit of quantification and precision.. 

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Fired pressed pellet as a sample preparation technique of choice for an energy dispersive X-ray fluorescence analysis of raw clays

The main subject concerns comparing different techniques to prepare raw clay samples for energy-dispersive X-ray fluorescence spectrometry (EDXRF) Three kind of sample preparation procedures are examined, which are the loose powder, pressed pellet and fired pressed pellet The ample preparation  tehniques  were compared by parameters such as limit of detection (LOD), limit of quantification (LOQ) and precision.

Mijatović , N.,  Vasić , M.,  Miličić , L.,  Radomirović , M. and  Radojević , Z. (2023). Fired pressed pellet as a sample preparation technique of choice for an energy dispersive X-ray fluorescence analysis of raw clays.  Talanta , [online] 252, p.123844. doi:10.1016/j.talanta.2022.123844. ‌

[Audio] from the result obtained, the fired pressed pellet is the most practical and precise approach for sample preparation of raw clays. 

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260
220
200
180
* 160
{'140
• Recovery LP
120
• Recovery PPB
100
• Recovery FPP
80
60
40
Fig 2. Influence Of sample preparation on the determined concentration Of the major oxides using
three different approaches: press pellet Without a binder (FPP), press pellet With the binder
(PPB), and loose powders (LP) preparation, for concentrations ofSi, A1, Fe, Ca, Mg, K, Na, Ti,
P, Mn, and S obtained With 1 5 CRM given as trueness (Recovery, 0/0). The error bars indicate the
standard deviation Of the three replicated concentrations measured for the different sample
pre

60
Enew [ke VI
Fig 3.SignaI-to-noise ratio, brown line for the LP approach, blue line for the PPB
approach, and red line for the Epp approach

35
15
05
-+-FPP
Si A1 Fe Mg CaNa K Ti P Mn S
Fig 4. Limit Of detection values for elemental analysis Of clays for three sample preparation
approaches.

Results proved that the fired pressed pellet is the most practical and precise approach for sample preparation of raw clays.

case study

Now let's look into our case study for XRF sample preparation by using pressed pellet

The title for the case study is Fired pressed pellet as a sample preparation technique of choice for an energy dispersive X-ray fluorescence analysis of raw clays, and in this study, they tested 3 types of sample preparation procedures which are the loose powder, pressed pellet, and fired pressed pellet for raw clay and comparing each methods based on the recoveries, limit of detection , limit of quantification and precision.

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from the result obtained, the fired pressed pellet is the most practical and precise approach for sample preparation of raw clays

case study

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