ÖÚËùÖÜÖª£¬ÎåÑÕÁùÉ«ÒÔ¼°¾ßÓÐÖÖÖÖ¹¦Ð§µÄ·Ä֯ƷÐèҪͨ¹ý»¯Ñ§È¾ÁÏÀ´¾ÙÐд¦Öóͷ££¬¶øÔØÌåȾÁÏÓÉÓÚÆäµÍÁ®µÄ±¾Ç®ÔÚ³£Î³£Ñ¹ÏÂÓÐÖúÓÚÊèɢȾÁ϶ÔÆäȾɫ£¬±»ÆÕ±éÓ¦ÓÃÔÚ·Ä֯ӡȾÐÐÒµ¡£Ñо¿Åú×¢£¬´ó´ó¶¼ÔØÌåȾÁ϶ÔÈËÌåÓÐDZÔÚµÄÖ»ûºÍÖ°©ÐÔ£¬ÇÒ²»Ò×ÆÊÎö£¬¶ÔÇéÐÎÊ®·ÖÓк¦¡£Å·ÃË»®¶¨¶ÔÆäÔÚ·Ä֯ƷÖвÐÁôÁ¿ÏÞÖÆ×ÜÁ¿²»Áè¼Ý1ppm£¬ÒÔÊÇ·Ä֯ƷÖеÄÓлúÂÈÔØÌå×÷ΪÉú̬·Ä֯Ʒ¼ì²âµÄÖ÷ÒªÏîÄ¿¡£½ÓÄÉGC-MS 6800ÆøÏàÉ«Æ×ÖÊÆ×ÁªÓÃÒÇ£¬¶Ô·Ä֯ƷµÄÂÈ»¯±½ºÍÂÈ»¯¼×±½¾ÙÐÐÆÊÎö£¬»ñµÃÁ˽ÏÁ¿Öª×ãµÄ²âÊÔЧ¹û¡£
1.ÒÇÆ÷¼ò½é
GC-MS 6800ÊÇpgÍøÕ¾Â齫ºúÁËÒÇÆ÷È«ÐÄ´òÔìµÄÒ»¿î¸ßÐÔ¼Û±ÈÆøÏàÉ«Æ×ÖÊÆ×ÁªÓÃÒÇ£¬¾ßÓÐÍêÈ«µÄ×ÔÖ÷֪ʶ²úȨ£¬ÓµÓжàÏîרÀûÊÖÒÕ£¬¿ÉÆÕ±éÓ¦ÓÃÓڸ߷Ö×ÓÖÊÁÏ¡¢ÇéÐα£»¤¡¢µç×ÓµçÆ÷¡¢Ò½Ò©¡¢Ê¯ÓÍ»¯¹¤¡¢Ê³ÎïÇå¾²¡¢·Ä֯Ƥ¸ïµÈ¶àÐÐÒµÖÐÓк¦ÎïÖʵļì²â¡£
ͼ1.GC-MS 6800ÆøÏàÉ«Æ×ÖÊÆ×ÁªÓÃÒÇÍâ¹Ûͼ
2.ʵÑ鲿·Ö
2.1 ²âÊÔÔÀí
ÑùÆ·¾¼ôËéºó׼ȷ³ÆÈ¡£¬¾Õý¼ºÍéÝÍÈ¡¹ýÂ˺ó£¬ÓÃGCMSÆÊÎö¡£ÒÀ¾ÝÄ¿µÄ»¯ºÏÎïµÄ±£´æʱ¼äºÍ±ê×¼ÖÊÆ×ͼ»òÌØÕ÷Àë×Ó¶¨ÐÔ¶¨Á¿£¬ÓÃÍâ±ê·¨¶¨Á¿¡£
2.2Ö÷ÒªÒÇÆ÷×°±¸¡¢ºÄ²ÄºÍÊÔ¼Á
GC-MS 6800 ÆøÏàÉ«Æ×ÖÊÆ×ÁªÓÃÒÇ£¬ÅäÓÐEI£¨pgÍøÕ¾Â齫ºúÁË£©£»
ÆÊÎöÌìƽ£º¾«¶ÈÊ®Íò·ÖÖ®Ò»£¨BT 125D£¬Èü¶àÀû˹¿ÆѧÒÇÆ÷£¨±±¾©£©ÓÐÏÞ¹«Ë¾£©£»
ÂÈ»¯±½/ÂÈ»¯¼×±½»ìÏý±ê׼Ʒ£º¦Ñ=1000mg/L £»¹º×Ô¹ú¼Ò±ê×¼ÎïÖÊÍø£»
Õý¼ºÍ飺HPLC¼¶£¨Ä¬¿Ë£©¡£
2.2 ÒÇÆ÷²âÊÔÌõ¼þ
É«Æ×Öù£ºDB-5MS£¬30m¡Á0.25mm¡Á0.25¦Ìm£»
ÖùÏä³ÌÐòÉýÎÂÌõ¼þ£º³õʼζÈ60¡æ¼á³Ö2min£¬10¡æ/minÉýÖÁ180¡æ¼á³Ö4min£¬20¡æ/minÉýÖÁ280¡æ¼á³Ö2min£»
½øÑù·½·¨£º·ÖÁ÷½øÑù£¬·ÖÁ÷±È10:1£»
½øÑùÁ¿£º1.0¦ÌL£»
½øÑù¿Úζȣº280¡æ£»
ÆøÖʽӿÚζȣº280¡æ£»
Àë×ÓԴζȣº280¡æ£»
ÔØÆø£ºº¤Æø£¬´¿¶È¡Ý99.999%£¬Á÷ËÙ1.0mL/min£»
µçÀë·½·¨£ºEI£»
µçÀëÄÜÁ¿£º70eV£»
ÈܼÁÇгýʱ¼ä£º4min£»
²â¶¨·½·¨£ºTIC£¨FULL SCAN£©¶¨ÐÔ£¨É¨Ãè¹æÄ££º45-300amu£©£¬SIMģʽ¶¨Á¿¡£
3.²âÊÔЧ¹û
3.1 22ÖÖ±ê×¼ÎïÖÊ×é·Ö¶¨ÐÔЧ¹û
|
1¡ª2-Âȼױ½
|
2¡ª3-Âȼױ½
|
3¡ª4-Âȼױ½
|
|
4¡ª1,3-¶þÂȱ½
|
5¡ª1,4-¶þÂȱ½
|
6¡ª1,2-¶þÂȱ½
|
|
7¡ª2,4-¶þÂȼױ½
|
8¡ª2,5-¶þÂȼױ½/2,6-¶þÂȼױ½
|
9¡ª
1,3,5-ÈýÂȱ½
|
|
10¡ª3,4-¶þÂȼױ½/2£¬3-¶þÂȼױ½
|
11¡ª1,2,4-ÈýÂȱ½
|
12¡ª1,2,3-ÈýÂȱ½
|
|
13¡ª2,4,5-ÈýÂȼױ½
|
14¡ª2,3,6-ÈýÂȼױ½
|
15¡ª1,2,4,5-ËÄÂȱ½
|
|
16¡ª1,2,3,5-ËÄÂȱ½
|
17¡ª1,2,3,4-ËÄÂȱ½
|
18¡ªÎåÂȱ½
|
|
19¡ª2,3,4,5,6-ÎåÂȼױ½
|
20¡ªÁùÂȱ½
|
|
ͼ2. 22ÖÖ±ê×¼ÎïÖÊ×ÜÀë×ÓÁ÷É«Æ×ͼ
ͼ3¡¢2-Âȼױ½/3-Âȼױ½/4-Âȼױ½ÖÊÆ×ͼ
ͼ4¡¢1,3-¶þÂȱ½/1,4-¶þÂȱ½/1,2-¶þÂȱ½ÖÊÆ×ͼ
ͼ5¡¢2,4-¶þÂȼױ½ /2,5-¶þÂȼױ½/2£¬6-¶þÂȼױ½/3,4-¶þÂȼױ½/
2,3-¶þÂȼױ½ÖÊÆ×ͼ
ͼ6¡¢ 1,3,5-ÈýÂȱ½/1,2,4-ÈýÂȱ½/ 1,2,3-ÈýÂȱ½ÖÊÆ×ͼ
ͼ7¡¢2,4,5-ÈýÂȼױ½/2,3,6-ÈýÂȼױ½ÖÊÆ×ͼ
ͼ8¡¢1,2,4,5-ËÄÂȱ½/1,2,3,5-ËÄÂȱ½/1,2,3,4-ËÄÂȱ½ÖÊÆ×ͼ
ͼ9¡¢ÎåÂȱ½ÖÊÆ×ͼ
ͼ10¡¢2,3,4,5,6-ÎåÂȼױ½ÖÊÆ×ͼ
ͼ11¡¢ÁùÂȱ½ÖÊÆ×ͼ
±í1.¸÷Ä¿µÄÎï»ù±¾²âÊÔÐÅÏ¢
|
»¯ºÏÎï
|
Ó¢ÎÄÃû³Æ
|
CASºÅ
|
ÌØÕ÷Àë×Ó
|
|
2-Âȼױ½
|
2-chlorotoluene
|
95-49-8
|
126 91 63
|
|
3-Âȼױ½
|
3-chlorotoluene
|
108-41-8
|
126 91 63
|
|
4-Âȼױ½
|
4-chlorotoluene
|
106-43-4
|
126 91 63
|
|
1,3-¶þÂȱ½
|
1,3-dichlorobenzene
|
541-73-1
|
146 111 75
|
|
1,4-¶þÂȱ½
|
1,4-dichlorobenzene
|
106-46-7
|
146 111 75
|
|
1,2-¶þÂȱ½
|
1,2-dichlorobenzene
|
95-50-1
|
146 111 75
|
|
2,4-¶þÂȼױ½
|
2,4-dichlorotoluene
|
95-73-8
|
160 89 125
|
|
2,5-¶þÂȼױ½/
2,6-¶þÂȼױ½
|
2,5-dichlorotoluene/
2,6-dichlorotoluene
|
19398-61-9/
118-69-4
|
160 89 125
|
|
1,3,5-ÈýÂȱ½
|
1,3,5-trichlorobenzene
|
108-70-3
|
180 145 182
|
|
3,4-¶þÂȼױ½/
2,3-¶þÂȼױ½
|
3,4-dichlorotoluene/
2,3-dichlorotoluene
|
95-75-0/
32768-54-0
|
160 89 125
|
|
1,2,4-ÈýÂȱ½
|
1,2,4-trichlorobenzene
|
120-82-1
|
180 145 182
|
|
1,2,3-ÈýÂȱ½
|
1,2,3-trichlorobenzene
|
87-61-6
|
180 145 182
|
|
2,4,5-ÈýÂȼױ½
|
2,4,5-trichlorotoluene
|
108-70-3
|
159 123 194
|
|
2,3,6-ÈýÂȼױ½
|
2,3,6-trichlorotoluene
|
2077-46-5
|
159 123 194
|
|
1,2,4,5-ËÄÂȱ½
|
1,2,4,5-tetrachlorobenzene
|
95-94-3
|
216 179 181
|
|
1,2,3,5-ËÄÂȱ½
|
1,2,3,5-tetrachlorobenzene
|
634-90-2
|
216 179 181
|
|
1,2,3,4-ËÄÂȱ½
|
1,2,3,4-tetrachlorobenzene
|
634-66-2
|
216 179 181
|
|
ÎåÂȱ½
|
pentachlorobenzene
|
608-93-5
|
250 180 215
|
|
2,3,4,5,6-ÎåÂȼױ½
|
2,3,4,5,6-pentachlorotoluene
|
877-11-2
|
264 191 229
|
|
ÁùÂȱ½
|
hexachlorobenzene
|
118-74-1
|
284 214 249
|
3.2 ÑùÆ·²âÊÔ
ͼ12.ÏÖʵÑùÆ·²âÊÔͼ
4.×ܽá
±¾ÊµÑé½ÓÄÉÆøÏàÉ«Æ×ÖÊÆ×ÁªÓ÷¨£¨GC-MS£©£¬ÔÚSIMɨÃèģʽ϶ÔÂÈ»¯±½ºÍÂÈ»¯¼×±½»¯ºÏÎï¾ÙÐвâÊÔ£¬ÒªÁìÎȹ̿ɿ¿£¬ÏßÐÔ¹æÄ£ºÃ£¬Ñ¸Ëٶȸߣ¬ÊÜÔÓÖÊ·å×ÌÈÅС£¬ÍêÈ«ÇкÏÅ·ÃËÏÞÁ¿µÄÒªÇó¡£
5£®²Î¿¼ÎÄÏ×
[1] GB/T 20384-2006 ·Ä֯Ʒ ÂÈ»¯±½ºÍÂÈ»¯¼×±½²ÐÁôÁ¿µÄ²â¶¨
[2] BS EN 17137:2018 Determination of the content of compounds based on chlorobenzenes and chlorotoluenes
