美國SKC濾膜過濾器

濾紙在空氣采樣上操作的應(yīng)用

由于人類意識到室內(nèi)空氣污染的問題，更有鑒于發(fā)現(xiàn)室內(nèi)所使用的材料有致癌疑慮，所以濾紙在空氣采樣成為環(huán)保及職業(yè)衛(wèi)生重要的檢測環(huán)節(jié)。因為微粒在空氣的阻力較小，能滯留于濾紙上累積達(dá)到捕集的效果。

濾紙大致上可分兩種類型：深層濾紙及薄膜濾紙。兩種濾紙捕集功能不同，以0.8μm濾紙為例，薄膜濾紙可將微粒*保留，但深層濾紙則不能*截留。而孔徑的大小取決于液體過濾后殘留之微粒大小，所保留的微粒尺寸即決定了濾紙的孔徑。

薄膜濾紙:	組成均勻，多孔性組織結(jié)構(gòu)。薄膜濾紙不能使用于”篩選”顆粒大小。薄膜濾紙表面增加的重量即是顆粒大小保留于濾紙上顆粒，因顆粒會填塞于濾紙上。而相同的情況于深層濾紙微粒可能會穿透。
深層濾紙:	不均勻的纖維結(jié)構(gòu)。其孔徑大小是決定于破出顆粒大小的決定。因破出會造成樣品的損失。

美國SKC濾膜過濾器

濾紙-空氣中粒狀物之采樣 Filters for Particulate Sampling

濾紙在空氣采樣上的應(yīng)用已有20年以上。SKC的濾紙種類繁多，從材質(zhì)來區(qū)分有纖維素酯類，聚氯乙烯，聚碳酸酯，鐵弗龍，銀膜，玻璃纖維，石英纖維，纖維素，明膠等?？諝獠蓸訒r除了濾紙外，尚需要濾紙匣，濾紙匣固定座及其他多種相關(guān)配件，而濾紙匣亦有預(yù)裝濾紙經(jīng)特殊涂敷料處理之濾紙，以供特定化合物的采樣，代替液體沖擊瓶的采樣法。如何選擇適當(dāng)?shù)臑V紙則可參見美國NIOSH、OSHA、USEPA、ASTM或國內(nèi)IOSH、NIEA等機(jī)構(gòu)所公告的標(biāo)準(zhǔn)方法與下列分類說明。

濾紙種類及特性比較:

材質(zhì)	縮寫	孔徑	尺寸	主要性質(zhì)	空氣采樣應(yīng)用
纖維素酯 Mixed Cellulose Esters	MCE	0.45 μm 0.8 μm 1.2 μm 5.0 μm	25 mm 37 mm 47 mm	親水性可溶解適于原子吸光分析可形成透明供穿透顯微分析易于溶解并且澄清	金屬粉塵分析石綿與人造纖維
聚氯乙烯 Pure Homopolymer PVC	PVC	0.2 μm 0.5 μm 0.8 μm 2.0 μm 5.0 μm	25 mm 37 mm 47 mm	疏水性非氧化表面不含硅低灰含量低吸水性低凈重適于重量分析	重量分析六價鉻
鐵弗龍 Teflon/Polytetra fluoroethylene	PTFE	0.5 μm 5.0 μm 1.0 μm 2.0 μm	13 mm 25 mm 37 mm 47 mm	疏水性不溶于酸鹼與溶劑可高壓滅菌	堿性粉塵多環(huán)芳香烴農(nóng)藥異氰酸鹽
聚碳酸酯 Polycarbonate	PC	0.3 μm 0.4 μm 0.8 μm	25 mm 37 mm 47 mm	疏水性顯微鏡下光滑表面直穿透孔隙極薄(10-20um)與穿透性可高壓滅菌	掃描式電子顯微鏡石綿纖維
銀膜 Silver membrane	AG	0.45 μm 0.8 μm	25 mm 37 mm	可與廣泛溶劑兼容耐高溫可高壓滅菌均勻的孔篩及厚度	氯、溴以TEM測定石綿以X線繞射分析硅
玻璃纖維 Glass Fiber	FG	1.0 μm (Liquid Nominal Rating)	13 mm 25 mm 37 mm 47 mm 8×10in	部分疏水性耐高溫高壓滅菌高粒狀物保持力	農(nóng)藥粒狀物異氰酸鹽乙醇
石英 Quartz	QZ	1.2 μm (Liquid Nominal Rating)	25 mm 37 mm 47 mm 102 mm 8×10in	同玻纖特性金屬含量低高溫可達(dá)300℃ 可高壓滅菌	空氣采樣氣膠粒狀物 PM 10 柴油粒狀物
纖維素 Cellulose	CEL	(Nominal)		可高壓滅菌均一強(qiáng)度無灰(Whatman Type 40)	AA HPLC

訂貨號	描述	價格/元
225-0020	IMPINGER, PFA, VERT & SIDE PORT OR, V&S PORT	1589
225-0021	IMPINGER, PFA, TWO VERT PORTS OR, 2V PORTS	1767
225-0022	IMPINGER TUBE BEND, PFA	446
225-0023	IMPINGER TUBE BEND, PFA	446
225-0026	HOLDER, PFA, IMPINGER	740
225-0027	HOLSTER, PFA, IMPINGER	394
225-01-01	CYCLONE, 25MM, ALUM	1260
225-01-02	CYCLONE, 37MM, ALUM	1260
225-01-03	CALIBRATION ADAPTER, ALUM CYCL	473
225-1	HOLDER, FILTER CASSETTE	457
225-100	CYCLONE, GS-3, 37MM	1260
225-101	CYCLONE CASS ADAPTER 25MM, GS	150
225-102	CYCLONE CASS ADAPTER 37MM, GS	150
225-103	CYCLONE, GS-3, 25MM	1260
225-105	CYCLONE, GS-1, 10MM	1260
225-108	ADAPTER, BOWL, GS-1 CYCLONE	299
225-1107	HOLDER, FILTER, OPEN, 25MM, 6PK	4016
225-1109	HOLDER, FILTER, 25MM, 6PK	4016
225-111	CALIBRATION JAR, STANDARD	713
225-112	CALIBRATION JAR, LARGE	945
225-1147	HOLDER, FILTER,47MM, POLYPROP	1409
225-13-1	FORCEPS	173
225-13-2	ADAPTERS, PVC 10PK	214
225-13-3	ADAPTERS, METAL 10PK	457
225-13-4	TUBING, TYG, 1/4ID 3/8 OD 10FT	567
225-13-4A	TUBING, TYGON, 3/8 OD, 3.3 FT	260
225-13-5A	OPENER, CASSETTE	513
225-13-6	CLIP/CABLE TIE 10PK	394
225-13-6A	CLIP/CABLE TIE 25 PK	945
225-13-7	LIFTER, FILTER	834
225-13-8	TUBING, CLIP & TIE	284
225-132A	ADAPTERS, PVC, 250PK	4445
225-1344	FORCEPS, PTFE COATED TIP	772
225-1345	TUBING, TYG, 1/4ID 3/8OD 50FT	2347
225-1346	TUBING, TYG,3/16ID 5/16OD 10FT	536
225-1347	TUBING, RUB, 1/4ID,1/16WT,10FT	662
225-1348	SUPPORT, SPRING FOR TUBING 5PK	268
225-1349	TUBING, TYGON, 5/16 ID, 9/16 OD. 10 FT	1496
225-1350	TUBING, POLYURETHANE, REINFD,10FT	1181
225-1351	TUBING, TYGON, 3/8IN ID, 10FT	1024
225-1352	TUBING, TYGON, 3/8IN ID, 50FT	4489
225-1353	TUBING, TYGON, 1/2IN ID, 10 FT	1024
225-1370	LABELS, SAMPLING, 500PK	677
225-16	FILTER, GLASS (500PK)	1748
225-1601	FILTER, POLYCARB,.8,25MM,100PK	1606
225-1602	FILTER, POLYCARB,.8,37MM,100PK	2088
225-1603	FLTR-POLYCARB-.8,47MM, 100PK	2401
225-1604	FILTER CASSETTES, POLYCARB, 50PK	2495
225-1608	FILTER, POLYCARB, 25MM, 100PK	1391
225-1609	FILTER, POLYCARBONATE, 37MM, 100PK	1820
225-1610	FILTER, POLYCARB, 47MM, 100PK	2115
225-17-01	FILTER, PTFE,1.0,37MM,100PK	5212
225-17-03	FILTER, PTFE,5.0,13MM,100PK	2373
225-17-04	FILTER, PTFE, .45, 37MM, 100PK	6158
225-1709	FILTER, PTFE, 2.0, 37MM, 50 PK	3989
225-1711	FILTER, PTFE, 3.0, 25MM, 50PK	8193
225-1712	HOLDER,FILTER,PFA, 47MM	2124
225-1713	CASSETTE, PTFE, 37MM, 50PK	3726
225-1715	CASSETTE, PTFE,1.0,37MM,50PK	5060
225-1722	FILTER, PTFE 0.3, 100PK	4266
225-1723	CASSETTE, PTFE 0.3, 50PK	5444
225-1724	FILTER-PTFE, 47MM, 100PK	5435
225-1725	FILTERS, PTFE, 25MM, 50PK	5765
225-1728	FILTER-PTFE, 5.0, 25MM, 50PK	1602
225-1729	FILTER-PTFE, 37MM, 100PK	4302
225-1747	FILTER, PTFE, 2.0, 47MM, 50PK	5051
225-1748	FILTER, PTFE, 2.0, 47MM, 50PK	3231
225-1751	CASSETTE,PTFE,1UM,25MM,2-PC,50PK	5422
225-1752X	CASSETTE, PTFE, 25MM, 50PK	5940
225-1755	FILTER-PTFE, 47MM, 100PK	4404
225-1762	FILTER-PTFE, 37MM, RESPICON, 50PK	3508
225-17A	FILTER, PTFE, 5.0, 37MM, 50PK	2624
225-1801	FILTER, SILVER, 37MM, 0.8, 25PK	5498
225-1802	FILTER, SILVER, 25MM, 0.45, 50PK	5980
225-1803	FILTER, SILVER, 25MM, 50PK	5980
225-1804	FILTER, SILVER, 47MM, 25PK	7568
225-1809	FILTER, QUARTZ, 37MM, HT,100PK	7622
225-1811	FILTER, QUARTZ, 47MM,100PK	4373
225-1820	FILTER, QUARTZ, 8X10, 25PK	6944
225-1821	FILTER, QUARTZ, 102MM, 25PK	1696
225-1822	FILTER, QUARTZ, 37MM,ECON,25PK	1571
225-1823	FILTER, QUARTZ, 47MM, 25PK	1767
225-1824	FILTER, QUARTZ, 25MM, 100PK	973
225-1825	FILTER, QUARTZ, 25MM, 100PK	4445
225-1826	FILTER, QUARTZ, 34MM, MARPLE, 50PK	1763
225-1827	FILTER, QUARTZ, 37MM, 100PK	1736
225-1830	FILTER, QUARTZ, 47MM,1.2UM, 100PK	2115
225-18A	FILTER, CELLULOSE, TYPE40, 500PK	1633
225-18B	FILTER, CELLULOSE, TYPE 4, 500PK	1522
225-19	FILT,MCE.8,25MM,100PK	772
225-1911	FILTERS, MCE, 25MM, 100PK	629
225-1912	FILTER, MCE, 1.2, 25MM, 100PK	830
225-1913	FILTER, MCE, 25MM,BLACKGRID,100PK	785
225-1914	FILTERS, MCE, 37MM, 100PK	1302
225-1915	FILTERS, MCE, 20MM, 100PK	785
225-1921	FILTERS, MCE, 47MM, 100PK	1624
225-1922	FILTERS, MCE, 37MM WITH HOLE, 100PK	3525
225-1923	FILTERS, MCE, 37MM, 1.2 UM, 100PK	1566
225-1924	FILTER CASSETTES, MCE, 37MM, 50PK	2722
225-1925	CASSETTE, MCE, BESTCHEK, 37MM, 50PK	2651
225-1930	FILTERS, MCE, 25MM, 100PK	598
225-1931	FILTERS, MCE, 37MM, 0.8, 100PK	677
225-1932	FILTER,MCE, 34MM,SLITS/MARPLE 50PK	1415
225-1933	FILTER,MCE, 37MM, 100 PK	1125
225-1934	FILTER, MCE, 25MM,GRID, 50PK	1879
225-1938	FILTER, MCE, 37MM, 5.0, 100PK	1714
225-1939	FILTER-MCE, W/O PADS, 37MM, 100PK	820
225-1941	FILTER-MCE, 37MM, RESPICON, 100PK	3525
225-2	CASSETTE-2PC 10PK	179
225-2-01	SLIDE/PETRI DISH 100PK	1874
225-2-25LF	CASSETTE, 2-PC, SURE-SEAL, 50 PK	1540
225-20	HOLSTER-MIDGET IMPINGER	394
225-20-01	HOLDER, IMPINGER, SGL	583
225-20-02	HOLDER, MIDGET IMPINGER, DBL	662
225-2050LF	CASSETTE, 2-PC, LEAK-FREE, 50PK	665
225-22	TRAP, MIDGET IMPINGER	961
225-22-01	TRAP, MICRO IMPINGER (PK/3)	977
225-22-02	SORBENT, TRAP (200 GM)	740
225-2250	CASSETTE-OMEGA, 2-PC, 37MM, 250PK	3258
225-2257	CASSETTE, 2-PC 25MM, CONDUC, 50PK	910
225-2258	CASSETTE, 2-PC, 25MM, FLAT, 100PK	2575
225-2259	CASSETTE, 3-PC, 25MM, FLAT, 100PK	3159
225-23	SPACERS, PMA PAD (PK/25)	589
225-24	TABS, SMEAR (PK/100)	696
225-2400	SWABS, STERILE, PK/50	910
225-2401A	WIPE SAMPLE KIT, DELUXE	5534
225-2402	SURFACE SWAB KIT	625
225-2404	TEST KIT, LEAD CHECK (PK/8)	518
225-2404A	TEST KIT, LEAD CHECK (PK/16)	982
225-2413	SURFACE, GHOST WIPES, 1000 PK	4266
225-2414	SURFACE, GHOSTWIPES, 200PK	928
225-2415	TEMPLATE, 10 X 10 250PK	910
225-2415A	TEMPLATE, 10 X 10, 10PK	62
225-2416	TEMPLATE FOR LEAD, 12 X 12, PAPER, 250PK	1874
225-2416A	TEMPLATE FOR LEAD, 12 X 12, PAPER, 10PK	118
225-2420	TEST KIT, SOIL, LEAD, 6 TESTS	1000
225-25	CASSETTE BANDS, 37 MM (PK/100)	286
225-2503	CASSETTE BANDS, 25MM (PK/100)	277
225-2503A	CASSETTE BANDS, 25MM (PK/1400)	1963
225-2504	CASSETTE BANDS, 37MM, ORNGE, 100PK	303
225-2504A	CASSETTE BANDS, 37MM, ORNGE, 1000PK	1963
225-2507	CASSETTE BANDS, 37MM, YELLOW 100PK	303
225-2507A	CASSETTE BANDS, 37MM, YELLOW 1000PK	1963
225-2508	CASSETTE BANDS, 37MM, RED, 100PK	303
225-2508A	CASSETTE BANDS, 37 MM, RED, 1000 PK	1963
225-2509	CASSETTE BANDS, 37MM, CLEAR, 100 PK	303
225-2509A	CASSETTE BANDS, 37MM, CLEAR, 1000PK	1963
225-2510	CASSETTE BANDS, 25MM, CLEAR,1400PK	2445
225-2514	CASSETTE BANDS, 25MM, YELLOW 1400PK	1950
225-2515A	CASSETTE BANDS, 37MM, BLACK, 1000PK	1963
225-25A	CASSETTE BANDS, 37MM, WHITE 1000PK	1816
225-26	SCREEN, SS, 37 MM WIDE MESH	254
225-2625	SCREEN, SS, 25 MM WIDE MESH	178
225-2637	SCREEN, SS, 37 MM, FINE MESH	411
225-2647	SCREEN, SS, 47MM WIDE MESH, 2PK	588
225-2647A	SCREEN, SS, DPS SUPPORT, FINE MESH	488
225-269-25	CYCLONE, GK 2.69, 25 MM	6783
225-269-37	CYCLONE, GK 2.69, 37 MM	6783
225-27	PAD, SUPPORT,37MM, 100PK	281
225-27-07	FILTER, PTFE, 2.0, 37MM, 50PK	3481
225-2700	PAD, SUPPORT (PK/500)	1325
225-2705	FILTER, PTFE, 1.0, 37MM, 50PK	3909
225-2705C	CASSETTE, PTFE, 1.0, 37 MM, PP SUP, 100PK	14679
225-2708	FILTER, PTFE, .5, 25MM, 100PK	6051
225-2709	FILTER, PTFE, 2.0, 37MM, W/PMP, 50PK	7301
225-2714	FILTERS, PTFE, 25MM, 100PK	5444
225-2726	FILTER-PTFE, 25MM, 100PK	6587
225-2748	FILTER, PTFE, 2.0, 47MM, 50PK	5266
225-2749	FILTER, PTFE,1.0,47MM,50 PK	4266
225-2753	FILTER, PTFE, 47MM, 50PK	7479
225-28	PAD, SUPPORT, 25MM (PK/100)	254
225-2901	SUPPORT PAD, P-PLASTIC, 25MM 100PK	504
225-2902	SUPPORT PAD, P-PLASTIC , 37MM 100PK	794
225-2903	PAD, CELLULOSE, 47 MM, 100PK	445
225-2LF	CASSETTE, 2-PC, LEAK-FREE, 10PK	183
225-3-01	CASSETTE, MCE, BANDED, 37MM, 50PK	1330
225-3-01A	CASSETTE, MCE, BANDED, 37MM, 500PK	12834
225-3-01NB	CASSETTE, MCE, NOTBANDED, 37MM 50PK	1205
225-3-02	CASSETTE, MCE, .8, MTCH, 50 PK	3490
225-3-12A	CASSETTE,MCE,.8,25MM,3PC, 50PK	1339
225-3-23	CASSETTE W/COWL, 50PK	731
225-3-25LF	CASSETTE, 3-PC, SURE-SEAL, 50 PK	1892
225-3-RB	CASSETTE PLUGS, RED/BLUE 100PK	187
225-300R	CASSETTE SPCR, STYRENE, 25MM, 50PK	759
225-304	CASSETTE SPCR, STYRENE,37 MM, 50 PK	647
225-3050LF	CASSETTE, 3PC, LEAK-FREE, PK50	767
225-308	CASSETTE, 2 PC,CONDUC, 37MM,50PK	977
225-309	CASSETTE, 3 PC CONDUC,ETS 50PK	1266
225-3100	CASSETTE, MCE 0.8, 25 MM, 50PK	3070
225-317	CASSETTE, DPM W/O CONE, 10PK	7544
225-32	CASSETTE-2PC, SWINNEX (PK/10)	1946
225-3201	GASKET 13MM (PK/100)	1107
225-321	CASS, MCE, BESTCHEK, 25MM, 50PK	1138
225-321A	CASS, MCE, BESTCHEK, .25MM, 50PK	1200
225-322	CASSETTE, MCE, MICROVAC (PK/1)	76
225-3250	CASSETTE-OMEGA, 3-PC,37MM, 250PK	3659
225-326	CASS, MCE, BESTCHEK, .8, 25MM, 50PK	1356
225-327	CASS, MCE, BESTCHEK,FOR TEM, 50PK	1647
225-329	CASSETTES, CONDUCTIVE, 25MM, 50PK	999
225-334	FILTER, MCE, 37MM, BLK-GRID, 100PK	1531