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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists analysing chemical samples 
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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists analysing chemical samples 
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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists analysing chemical samples 
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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists analysing chemical samples 
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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists with with a chemical analysis machine 
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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists with with a chemical analysis machine 
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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists with with a chemical analysis machine 
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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists analysing chemical samples 
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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists with with a chemical analysis machine 
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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists analysing chemical samples 
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	©Si Barber. Moral rights asserted.Mandatory Credit: ? Si Barber/07739 472 922 Scientists analysing chemical samples