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Á÷¼±ÀÇ ¹æÁ¤½ÄÀÇ Æ¯Â¡-2Á¡ÀÇ À§Ä¡¸¦ ¾Ë¸é ±×·¡ÇÁÀÇ ½Ä°ú ±×¸²À» ±×¸± ¼ö ÀÖ´Ù´Â Á¡À» ÀÌ¿ëÇÏ¿© ³óµµ¿Í Èí±¤µµ »çÀÌÀÇ °ü°è¸¦ ³ªÅ¸³»´Â °Ë·®¼±À» ±×¸± ¼ö ÀÖ´Ù.
³óµµ(ppm),x
Èí±¤µµ,y
10
0.17
20
0.32
30
0.47
40
0.62
50
0.77
½Ã·á¿ë¾×1
0.50
½Ã·á¿ë¾×2
0.632
yÃàÀ» ±âÁØÀ¸·Î ¼öÁ÷¼± À§ÀÇ Á¡¿¡ ÀÖ´Â 0.50¿¡¼ ¼öÁ÷À¸·Î xÃàÀ¸·Î ³»¸®¸é 32ÀÌ ³ª¿Â´Ù.
±×·¯¹Ç·Î ½Ã·á¿ë¾×ÀÇ Èí±¤µµ´Â 32ppmÀÌ µÈ´Ù.
½Ã·á¿ë¾× 2¸¦ ±¸ÇÒ¶§,
(30,0.47) (32,0.5)°¡ ÇÑ ¼öÁ÷¼± À§¿¡ ÀÖ´Â Á¡À϶§.
0.5-0.47/32-30=0.03/2
y-0.47=3/200(x-30)
y-0.47=3/200x-9/20 ( °Ë·®¼± ½Ä )
y=3/200x-9/20+47/100
y=3/200x+2/100
63.2/100-2/100=3/200x
63.2/100x200/3=x
x=40.8
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