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zb6824785

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4 ºÓÁ÷µ×ÄàÁò»¯ÎïµÄ²â¶¨( GC-9A/FPD)
È¡25ml ¶¥¿ÕÆ¿¼Ó1.0g ºÓÁ÷³Á»ýÎï, ¼Ó5.0mlÕôÁóË®, Ò¡¶¯Ê¹³Á»ýÎï¾ùÔÈ·ÖÉ¢,
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zb6824785: ½ð±Ò+20, ·­ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, Thanks a lot! 2014-02-28 12:18:49
4 Determination of sulfide in river sediments (GC-9AFPD)
To a 25ml headspace vial, add 1.0g of river sediment and 5.0ml of distilled water,

after shaking thoroughly, add 1.0ml of 1:1 sulfuric acid to produce H2S from sulfide,

cap plug rapidity, shake for 1 min£¬allow to stand at room temperature for 30 min to

reach an equilibrium.Inject 100¦Ìl of headspace gas with a vapor-tight syringe, record

the chromatograms.
2Â¥2014-02-28 10:37:06
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