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    <subfield code="a">An&#xE1;lise de amostras de coca&#xED;na das fronteiras Norte e Sul</subfield>
    <subfield code="f">Fernanda M. Coura... [et al.]</subfield>
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    <subfield code="a">Verifica-se que a coca&#xED;na consumida no Brasil apresenta algumas caracter&#xED;sticas pr&#xF3;prias da regi&#xE3;o em que &#xE9; consumida, ou seja, a droga apreendida na regi&#xE3;o norte tem, de uma maneira geral, teores relativamente altos de coca&#xED;na, tem colora&#xE7;&#xE3;o cinza ou levemente acastanhada, enquanto que a coca&#xED;na apreendida na regi&#xE3;o sul tem um baixo grau de pureza e apresenta quase sempre colora&#xE7;&#xE3;o branca. No presente trabalho foram analisadas amostras de coca&#xED;na provenientes, respectivamente, da regi&#xE3;o amaz&#xF3;nica e da regi&#xE3;o do Rio Grande do Sul. Identifica-se a metodologia  utilizada, apresentam-se os resultados e as respectivas conclus&#xF5;es.</subfield>
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    <subfield code="c">Bras&#xED;lia</subfield>
    <subfield code="d">Mar&#xE7;o 2002</subfield>
    <subfield code="v">Ano IV,n.12</subfield>
    <subfield code="t">Per&#xED;cia Federal</subfield>
    <subfield code="p">p.30-32</subfield>
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    <subfield code="a">COCA&#xCD;NA</subfield>
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    <subfield code="a">AN&#xC1;LISE DE DROGA</subfield>
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    <subfield code="a">Coura</subfield>
    <subfield code="b">Fernanda M... [et al.]</subfield>
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