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Re: Xrf coffee ground


taray singh
 

Hi guys
No analysis is complete without a control
Here is an xrf of the? same fresh coffee beans (partly crushed to make it more homogenous)
Wrapped in a thin kitchen plastic sheet.
In line with the higher count rate,peaking time? increased to 32.
Xray exposure 3 secs
?This time peaks are seen more clearly
This is partly due to the hot water scavenging effect? of the coffee beans? by the coffee maker? releasing ingredients into the cup.
This time peaks noted are Fe,Ni ,Br and Rb plus Pb
Pb is probably due to residual contamination?
Rb is obvious this time
Brazilian coffee is well known for this.
Mine is Vietnamese
Bromine is something unexpected
.It?could be? due to bromine pesticides used in the plantation.
Looks like I? cannot find any faults in Nescafe Milano? coffee maker used in my office
But I will not drink the coffee
Coffee fresh? mca attached.
Taray

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