mg 和g之间的换算 请问下ppm与mg/kg 或者mg/g 之间能换算吗？怎么换...

kg\u548cmg\u7684\u6362\u7b97

\u5343\u514b(Kg)\u548c\u6beb\u514b(mg)\u90fd\u662f\u91cd\u91cf\u7684\u5ea6\u91cf\u5355\u4f4d\u3002
\u56e0\u4e3a1Kg=1000g\uff0c1000g=1000mg\uff0c
\u56e0\u6b641Kg=1000x1000mg=1000000mg=1x10⁶mg\u3002
\u5373Kg\u4e0emg\u4e4b\u95f4\u76f8\u5dee1x10⁶\u500d\u3002
\u4f8b\u598272Kg=72x10⁶mg=7.2x10⁷mg\u3002


\u6269\u5c55\u8d44\u6599\uff1a
1\u3001\u5e38\u89c1\u7684\u91cd\u91cf\u5355\u4f4d
\uff081\uff09\u5e38\u89c1\u7684\u56fd\u9645\u901a\u7528\u91cd\u91cf\u5355\u4f4d\u4e3a\u5343\u514b\u3001\u514b\u3001\u6beb\u514b\u3002
\uff082\uff09\u4e2d\u56fd\u5e38\u7528\u7684\u91cd\u91cf\u5355\u4f4d\u4e3a\u65a4\u3001\u4e24\u3001\u94b1\u3002
\uff083\uff09\u6b27\u7f8e\u56fd\u5bb6\u5e38\u7528\u91cd\u91cf\u5355\u4f4d\u4e3a\u78c5\u3001\u76ce\u53f8\u3002
2\u3001\u91cd\u91cf\u5355\u4f4d\u4e4b\u95f4\u7684\u6362\u7b97\u5173\u7cfb
1\u5343\u514b=1000\u514b\u30011\u514b=1000\u6beb\u514b\u30011\u65a4=10\u4e24\u30011\u4e24=10\u94b1\u30011\u5343\u514b=2\u65a4\u30011\u78c5=16\u76ce\u53f8=453.6\u514b\u3002
3\u3001\u91cd\u91cf\u6d4b\u91cf\u5de5\u5177
\u5e38\u7528\u7684\u91cd\u91cf\u79f0\u91cf\u5de5\u5177\u6709\u7535\u5b50\u79f0\u3001\u53f0\u79e4\u3001\u6746\u79e4\u3001\u5929\u5e73\u3001\u5f39\u7c27\u79e4\u3001\u5730\u78c5\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u91cd\u91cf\u5355\u4f4d

ppm \u6216 p.p.m \u662f parts per million \u7684\u4e09\u4e2a\u8bcd\u7684\u8bcd\u5934\u7f29\u5199\uff0c
\u610f\u4e49\u4e3a\u201c\u767e\u4e07\u5206\u4e4b\u51e0\u201d\u6216 "\u767e\u4e07\u5206\u7387\uff0c10^-6 " \u3002\u65e0\u8bba\u662f\u8d28\u91cf
\u8fd8\u662f\u4f53\u79ef\u5747\u53ef\u4f7f\u7528\uff0c\u4f46\u662f\u7528\u7684\u4e0d\u591a\u3002
\u9898\u76ee\u4e0a\uff0cmg/kg =1mg/1kg*1000g/kg*1000mg/g=1mg/1000*1000mg
=1/1000*1000=1/10^6=10^-6=1ppm \u3002
\u540c\u7406\uff0cmg/g=1/1000=1000ppm \u3002

mg 和g之间的换算是：
1g=1000mg

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