如果沒有特殊的準(zhǔn)備，一些化學(xué)品是不能被任何固體吸收劑有效地捕獲的。在各種吸收劑上進行化學(xué)涂層，以捕獲醛類、二氧化氮、胺類和更多的化合物。涂層過濾器使活性化合物的取樣變得快速而簡單。它們是使用撞擊器的濕化學(xué)方法的一個方便的替代品。只需拔下輕巧的過濾盒，將其插入SKC過濾盒支架，將支架夾在工人的衣領(lǐng)上，并連接到個人采樣泵上。使用涂層過濾器收集以氣溶膠或霧狀存在的化合物或一些高沸點蒸汽。流速通常大于1升/分鐘，采樣時間從15分鐘到1小時不等。大多數(shù)涂層過濾器樣品在溶劑中提取，并通過氣相色譜或液相色譜進行分析。
預(yù)裝涂層濾膜的優(yōu)勢：
- 隨時可以使用
- 節(jié)約時間
- 方便地替代了撞擊器濕化學(xué)方法
- 經(jīng)濟實惠
- 無需組裝--預(yù)先裝入帶有端塞和收縮帶的盒中
- 符合機構(gòu)方法規(guī)范
- 沒有笨重的收集液體或玻璃
- 方便個人取樣
- 包裝尺寸小，適用于保質(zhì)期短的產(chǎn)品
- 列出的方法是最廣泛使用的。還要注意的是，涂層過濾器的保質(zhì)期有限，除非另有說明，否則都是以37毫米的盒裝供應(yīng)。
可采集化學(xué)物質(zhì)與對應(yīng)方法：
Chemical
Method
Filter; Coating
Pack Size
Part Number
乙酸酐
OSHA 82
2 Glass fibre filters; 1-(2-pyridyl) piperazine
10
225-9009
醋酸酐
OSHA 102
2 Glass fibre filters; veratrylamine and di-n-octyl phthalate
10
225-9010
4-氨基聯(lián)苯
OSHA 93
2 Glass fibre filters; sulphuric acid
10
225-9004
苯胺
NIOSH 2017
2 Glass fibre filters; sulphuric acid
10
225-9004
砷，揮發(fā)性化合物
OSHA ID-1006
1 MCE filter and plastic pad; untreated and 1 cellulose support pad; sodium carbonate
10
225-9001
聯(lián)苯胺
OSHA 65
2 Glass fibre filters; sulphuric acid
10
225-9004
溴、氯
NIOSH 6011
1 25 mm PTFE pre-filter and polypropylene support; 1 25 mm specially cleaned silver membrane and polypropylene support in 25 mm cassette
5
225-9006
巴豆醛
OSHA 81
2 Glass fibre filters; 2,4-dinitrophenylhydrazine and phosphoric acid
10
225-9019
鄰苯二甲酸二異丁酯
OSHA 71
2 Glass fibre filters; sulphuric acid
10
225-9004
3,3-二氯聯(lián)苯胺e
OSHA 65
2 Glass fibre filters; sulphuric acid
10
225-9004
二異氰酸酯&(HDI;2,6-TDI;2,4-TDI)
ASTM D5836
OSHA 42
1 Glass fibre filter and cellulose support; 1-(2-pyridyl) piperazine
10
225-9013
10
225-9002
二苯胺
OSHA 78
2 Glass fibre filters; sulphuric acid
10
225-9004
氟化物
OSHA ID-110
NIOSH 7902
ASTM D4765
1 MCE filter and cellulose pad; sodium carbonate
10
225-9001
氟化物，顆粒物
NIOSH 7906
2 Nitrocellulose filters; 1 coated with sodium carbonate, 1 uncoated
10
225-9031
戊二醛
OSHA 64
2 Glass fibre filters; 2,4-dinitrophenyl hydrazine and phosphoric acid
10
225-9003
乙醛
For IFV
2 25 mm glass fibre filters; 2,4-dinitrophenylhydrazine and phosphoric acid (filters only, in jar)
10
225-9036
鉻電鍍霧中的六價鉻
MDHS 52/4
25mm Polyvinylidine Fluoride Filter; sodium hydroxide (filters only)
24
225-9026
肼
OSHA 108
2 Glass fibre filters; sulphuric acid
10
225-9012
氫氟酸
NIOSH 7906
2 Nitrocellulose filters; 1 coated with sodium carbonate, 1 uncoated
10
225-9031
溴化氫
NIOSH 7907
2 Quartz filters; sulphuric acid; 1 coated with sodium carbonate, 1 uncoated
10
225-9032
氯化氫
NIOSH 7907
2 Quartz filters; sulphuric acid; 1 coated with sodium carbonate, 1 uncoated
10
225-9032
過氧化氫
OSHA 1019
2 25 mm Quartz filters; titanium oxysulphate hydrate in 25 mm cassette
10
225-9030 (OSHA 1019)
NON 57
10
225-9030 (NON 57)
異氰酸酯
ASTM
1 PTFE filter, 1 Glass filter treated with MAMA
(ISO-CHEK Sampling System)
12
225-9022
36
225-9022A
異氰酸酯（HDI；2,6-TDI；2,4-TDI）
ASTM D5836
OSHA 42
1 Glass fibre filter and cellulose support; 1-(2-pyridyl) piperazine
10
225-9013
36
225-9002
異氰酸酯（HDI, MDI, TDI, IPDI, HDI-BT, HDI-IC）
OR-OSHA 1010
1 Glass fibre filter; MAMA
13 mm preloaded in a 13 mm Swinnex holder
5
225-9029
有機異氰酸酯
MDHS 25/4 (UK)
1 25 mm A/E Glass filter; methoxyphenyl piperazine (filters only)
5
Special Order
正異丙基苯胺
OSHA 78
2 Glass fibre filters; sulphuric acid
10
225-9004
順丁烯二酸酐
OSHA 86
2 Glass fibre filters; veratrylamine
10
225-9021
順丁烯二酸酐
For IFV
1 25 mm Glass fibre filter; veratrylamine (filters only)
10
225-9028
硫醇類(甲基、乙基、正丁基和苯基)
NIOSH 2542
OSHA 26
1 Glass fibre filter; mercuric acetate
10
225-9007
4,4'-亞甲基雙(2-氯苯胺)(MOCA)
OSHA 71
2 Glass fibre filters; sulphuric acid
10
225-9004
亞甲基雙苯(MDI)
OSHA 47
1 Glass fibre filter and cellulose support; 1-(2-pyridyl) piperazine
10
225-9013
36
225-9002
4,4'-亞甲基苯胺
OSHA 57
NIOSH 5029
2 Glass fibre filters; sulphuric acid
10
225-9004
1-萘胺，2-萘胺
OSHA 93
2 Glass fibre filters; sulphuric acid
10
225-9004
硝酸
NIOSH 2017
2 Quartz filters; 1 coated with sodium carbonate, 1 uncoated
10
225-9032
硝基苯
NIOSH 2017
2 Glass fibre filters; sulphuric acid
10
225-9004
臭氧
OSHA ID-214
2 Glass fibre filters; nitrite-impregnated
10
225-9014
過氧乙酸
OSHA PV2321
1 Quartz filters (R-100); titanium oxysulphate hydrate (TiOSO4) preloaded in 25 mm 2-piece clear cassette
10
225-9037
苯二胺（鄰、間、對）
OSHA 87
2 Glass fibre filters; sulphuric acid
10
225-9004
磷化氫
OSHA 1003
1 Glass fibre filter; 1 polyester filter treated with mercuric chloride
10
225-9018
磷酸
NIOSH 7908
1 Quartz filter
10
225-9033
鄰苯二甲酸酐
OSHA 90
2 Glass Fibre filters, veratrylamine
10
225-9034
二氧化硫
NIOSH 6004 (modified)
1 MCE pre-filter and support/1 cellulose filter and support; sodium carbonate
10
225-9005
硫酸
NIOSH 7908
1 Quartz filter
10
225-9033
2,4-甲苯二胺
OSHA 65
2 Glass fibre filters; sulphuric acid
10
225-9004
2,6-甲苯二胺
OSHA 65
2 Glass fibre filters; sulphuric acid
10
225-9004
鄰甲苯胺
OSHA 71
2 Glass fibre filters; sulphuric acid
10
225-9004
2,4-二異氰酸甲苯和2,6-二異氰酸甲苯
For IFV
1 25 mmGlass fibre filter and cellulose sopport; 1-(2-pyridl)piperazine (filters only)
10
225-9035
鄰甲苯胺
NIOSH 2017
2 Glass fibre filters; sulphuric acid
10
225-9004
甲苯胺
(鄰、對、間)
OSHA 73
2 Glass fibre filters; sulphuric acid
10
225-9004
1,3,5-三縮水異氰脲酸酯（TGI）
OSHA PV2055
1 Glass fibre filter; hydrobromic acid
10
225-9027
戊醛
OSHA 85
3 Glass fibre filters; 2,4-dinitrophenylhydrazine and phosphoric acid
10
225-9020
間二胺(間-XDA, 對-XDA)
OSHA 105
2 Glass fibre filters; sulphuric acid
10
225-9004
