Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 244  |  »Ø¸´: 7
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

doctorwanghao

ľ³æ (СÓÐÃûÆø)

[½»Á÷] ¼×È©µÄ²â¶¨

ÎÒ¼±ÐèÒÒõ£±ûͪ·Ö¹â¹â¶È·¨²â¶¨¼×È©º¬Á¿µÄÎÄÏ×£¬Çë´ó¼Ò°ï°ï棬лл£¡

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ljz88

ľ³æ (СÓÐÃûÆø)

¡ï ¡ï
doctorwanghao(½ð±Ò+2,VIP+0):лл³æÓÑ
ÒÒõ£±ûͪ·Ö¹â¹â¶È·¨²â¶¨Ë®ÐÔÍ¿ÁÏÖм×È©
¼°²âÁ¿²»È·¶¨¶ÈÆÀ¹À
ÀîÓñÎä, ÕÅ¡¡×¿
(¹ú¼Ò»·¾³·ÖÎö²âÊÔÖÐÐÄ, ±±¾©¡¡100029)
¡¡¡¡ÕªÒª: ¶ÔÓÃÓڲⶨÄÚǽͿÁÏÖÐÓк¦ÎïÖʼ×È©µÄÒÒõ£±ûͪ·Ö¹â¹â¶È·¨½øÐÐÁËÏêϸÑо¿¡£ÊµÑé
½á¹û±íÃ÷,ÒÒõ£±ûͪ·Ö¹â¹â¶È·¨¹¤×÷ÇúÏßÓÐÁ¼ºÃµÄÎȶ¨ÐÔ¡£¹¤×÷ÇúÏßбÂʵÄÏà¶Ô±ê׼ƫ²îΪ
0. 74%¡£Îª´ïµ½¶¨Á¿·ÖÎöÄ¿µÄ,ÑùÆ·ÕôÁóʱ,¼ÓÈëË®µÄÌå»ýÓ¦²»µÍÓÚ200 mL,Í¿ÁÏÑùÆ·²ÐÁôÁ¿Ó¦
СÓÚ5 mL¡£ÑùÆ·ÕôÁóÒºÖм×ȩӦÔÚµ±Ìì²â¶¨¡£Í¿ÁÏÑùÆ·Öиߺ¬Á¿¼×È©µÄ»ØÊÕÂÊÆ½¾ùֵΪ
98. 5% ,µÍº¬Á¿¼×È©µÄ»ØÊÕÂÊÆ½¾ùֵΪ87. 9%¡£¶ÔÒÒõ£±ûͪ·Ö¹â¹â¶È·¨²â¶¨Ë®ÐÔÍ¿ÁÏÖм×È©º¬
Á¿µÄ²»È·¶¨¶È½øÐÐÁËÆÀ¹À¡£
¹Ø¼ü´Ê: ¼×È©; ÒÒõ£±ûͪ·Ö¹â¹â¶È·¨; ²âÁ¿²»È·¶¨¶ÈÆÀ¹À; Ë®ÐÔÍ¿ÁÏ
ÖÐͼ·ÖÀàºÅ: O657. 32; O213. 1; O623. 511¡¡¡¡¡¡ÎÄÏ×±êʶÂë: A
ÊÕ¸åÈÕÆÚ: 2006204205; ÐÞ¶©ÈÕÆÚ: 2006206222
»ù½ðÏîÄ¿: ¹ú¼Ò¿Æ¼¼²¿·ÖÎö²âÊÔм¼Êõз½·¨ÏîÄ¿(¿Æ2003) ;¹ú¼Ò¿Æ¼¼»ù´¡Ìõ¼þƽ̨ÏîÄ¿¡ª¡ª¡ªÈ«¹ú·ÖÎö²âÊÔÌåϵµÄ
½¨Á¢ÓëÍêÉÆ[ FC (03 - 04Äê¶È) 01 ]
×÷Õß¼ò½é: ÀîÓñÎä(1956 ) ,ÄÐ,ºþ±±Î人ÈË,¸ß¼¶¹¤³Ìʦ,·ÖÎö»¯Ñ§×¨Òµ¡£E2mail: liyuwu@cneac. com¡£
Determ ination of Harmful Substance Formaldehyde inWater2soluble
Coatings and Evaluation of theMeasurement Uncerta inty
L I Yu2wu, ZHANG Zhuo
(Na tio na l Re se a rch Cen te r fo r Enviro nm en ta lAna lys is a nd Me a su rem e n ts, Be ijing¡¡100029, Ch ina )
Abstract: UV spectrophtometric analysismethod with acetylacetone as color develop ing reagent, for determina2
tion of formaldehyde in water2soluble coatings are studied in details. The results of the study show that the
calibration curve of the method has good stability. The relative standard deviation of the slope of calibration
curves is 0. 74%. Some notices should be taken in samp le p reparation: a) water volume added to the coating
samp le should be more than 200 mL before separating formaldehyde from solid samp le by distillation, b) after
distillation, the volume of remnant of coating samp le and watermixture should be less than 5 mL, c) the formal2
dehyde in distillation solution should be determined at the same day. The experiments also show that the mean
recoveries for high and low levels of formaldehyde in coatings are 98. 5% and 87. 9% , respectively. The uncer2
tainties of analysis results are also estimated.
Key words: formaldehyde; spectrophotometrywith acetylacetone; evaluation ofmeasurement uncertainty, water2
soluble coating
¡¡¡¡×°ÊÎ×°ÐÞ²ÄÁÏÊͷŵÄÓк¦ÆøÌåÊÇÊÒÄÚ¿ÕÆøÎÛ
ȾµÄÖ÷ÒªÀ´Ô´,¼×È©ÊÇÆäÖÐÖ÷ÒªÎÛȾÎΪÁË´ÓÔ´
Í·ÉÏ¿ØÖÆÊÒÄÚÎÛȾ,Ïà¹Ø¹ú¼Ò±ê×¼ÒÑ·¢²¼,ÈçÖйú
»·¾³±êÖ¾²úÆ·È϶¨±ê×¼[ 1 ] ¡¢ÄÚǽͿÁϵÈ×°ÊÎ×°ÐÞ
²ÄÁÏÖÐÓк¦ÎïÖʼ×È©[ 2 ]ÏÞÁ¿±ê×¼,²¢¹æ¶¨ÁËÓëÖ®
ÅäÌ׵ļ×È©¼ì²â±ê×¼·½·¨: ÒÒõ£±ûͪ·Ö¹â¹â¶È
·¨[ 1 - 2 ] ¡£Ó÷ÖÎö»¯Ñ§×¨Òµ½Ç¶ÈÉó²é´Ë±ê×¼·½·¨,
Ïà¹ØÎÄÏ×[ 1 - 2 ] ȱÉÙ¼×È©»ØÊÕÂʼ°¾«ÃܶÈÊý¾Ý¡£
Ïñ³æ×Óѧϰ
6Â¥2008-03-11 16:14:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 8 ¸ö»Ø´ð

chaimoxiu1982

Í­³æ (СÓÐÃûÆø)

http://www.91files.com/?D7UPDTZS65HZ41FHRXNL
http://www.91files.com/?EA3EOUDHLDRLFD02N02G
ÕâÊÇÎÒ°ïÄã²éµÄÁ½ÆªÎÄÏ×£¬Ï£Íû¶ÔÄãÓаïÖú
2Â¥2008-03-11 09:22:49
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

chaimoxiu1982

Í­³æ (СÓÐÃûÆø)

Õâ¾ÍÊÇPDF¸ñʽµÄ
Ôõô»áÊÕ²»µ½ÄØ
Òª²»ÎÒÖ±½Ó¾Í·¢µ½ÉÏÃæÀ´
3Â¥2008-03-11 11:15:10
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

chaimoxiu1982

Í­³æ (СÓÐÃûÆø)

ÄãÁôÏÂÄãµÄÓÊÏ䵨ַ£¬ÎÒ·¢¸øÄã
4Â¥2008-03-11 11:15:56
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤349·ÖÇóµ÷¼Á +16 Àîľ×Ó°¡¹þ¹þ 2026-04-12 17/850 2026-04-14 09:11 by fenglj492
[¿¼ÑÐ] Çóµ÷¼Á +3 ÎÒ°®¸ßÊý¸ßÊý°®Î 2026-04-12 3/150 2026-04-14 01:00 by Íõ¬Bè±
[¿¼ÑÐ] 310Çóµ÷¼Á +15 666ÕæºÃ 2026-04-11 17/850 2026-04-13 22:27 by pies112
[¿¼ÑÐ] 297¹¤¿Æ£¬Çóµ÷¼Á? +13 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-12 13/650 2026-04-13 14:12 by dingyanbo1
[¿¼ÑÐ] Ò»Ö¾Ô¸»ª¹¤085600 331·Ö +7 ÌìÏÂww 2026-04-09 7/350 2026-04-13 09:01 by lhj2009
[¿¼ÑÐ] ҩѧÇóµ÷¼Á +3 RussHu 2026-04-12 4/200 2026-04-12 17:49 by ³ÂƤƤ
[¿¼ÑÐ] 0831ÉúÒ½¹¤µÚÒ»ÂÖµ÷¼Áʧ°ÜÇóÖú +12 СÐÜî£î£_s 2026-04-11 16/800 2026-04-12 16:28 by îÚè±
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖÐũ΢ÉúÎ288·Ö£¬ÈýÄêʵÑé¾­Àú +11 ´úfish 2026-04-09 11/550 2026-04-12 10:21 by Hayaay
[¿¼ÑÐ] 085404 293Çóµ÷¼Á +9 ÓÂÔ¶¿â°®314 2026-04-08 9/450 2026-04-12 02:24 by Çï¶¹²ËÑ¿
[¿¼ÑÐ] 22408µ÷¼Á315·Ö +3 zhuangyan123 2026-04-09 3/150 2026-04-12 00:25 by À¶ÔÆË¼Óê
[¿¼ÑÐ] Çóµ÷¼Á£¬Ò»Ö¾Ô¸´óÁ¬Àí¹¤´óѧ354·Ö +5 ÓêÉùÓàÉú 2026-04-11 6/300 2026-04-11 16:12 by ÓêÉùÓàÉú
[¿¼ÑÐ] 085410 273·Öµ÷¼Á +4 X1999 2026-04-09 4/200 2026-04-11 13:05 by pies112
[¿¼ÑÐ] 298Çóµ÷¼Á +5 ²ÐºÉÐÂÁø 2026-04-07 5/250 2026-04-11 11:02 by ×ÏêØ×ÏÆå
[¿¼ÑÐ] ¹¤¿Æ273µ÷¼Á +6 X1999 2026-04-09 7/350 2026-04-11 10:23 by zhq0425
[¿¼ÑÐ] 284Çóµ÷¼Á +12 archer.. 2026-04-10 13/650 2026-04-11 08:44 by zhq0425
[ÂÛÎÄͶ¸å] mdpiСÐÞrvrʱ¼äËÄÎåÌìÁË 20+3 ¹þ¹þhigh 2026-04-08 5/250 2026-04-10 16:02 by ±±¾©À³ÒðÈóÉ«
[¿¼ÑÐ] 301Çóµ÷¼Á +5 149. 2026-04-10 5/250 2026-04-10 15:45 by ²ñС°×
[¿¼ÑÐ] µ÷¼ÁÉêÇë086000Ò»Ö¾Ô¸Î÷±±Å©ÁֿƼ¼´óѧÉúÎïÓëÒ½Ò©320·Ö-±¾¿ÆÆë³¹¤Òµ´óѧ +3 ÃÀÃÀŮʿ 2026-04-09 3/150 2026-04-10 10:31 by liuhuiying09
[¿¼ÑÐ] һ־Ը³¶«´óѧ071000ÉúÎïѧѧ˶³õÊÔ·ÖÊý276Çóµ÷¼Á +20 Ľ¾øcc 2026-04-09 24/1200 2026-04-10 10:22 by xujun0624
[¿¼ÑÐ] 334Çóµ÷¼Á +16 Riot2025 2026-04-08 17/850 2026-04-09 09:28 by wdyheheeh
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û