哈希水质亚硝酸盐测定方法

ḋકⱘ䞛䲚ǃֱᄬϢᄬ‫ټ‬
•⫼ᑆ‫ⱘޔ‬ล᭭⫊៪⦏⩗⫊䞛䲚ḋકDŽ •㢹ḋક೼䞛䲚ৢ24ü48ᇣᯊ‫ߚݙ‬ᵤˈ䇋ᄬ‫ټ‬೼4 °C (39 °F)៪⏽ᑺ᳈ԢⱘᴵӊϟDŽ •⌟䆩ࠡᇚḋકࡴ⛁㟇ᅸ⏽DŽ •䇋࣓Փ⫼䝌ֱᡸࠖDŽ
‫⹂ޚ‬ᑺẔᶹᮍ⊩
ᷛ‫ޚ‬⒊⎆⊩
⊼˖‫݋‬ԧⱘ⿟ᑣ䗝ᢽ᪡԰䖛⿟䇋খ㾕⫼᠋᪡԰᠟‫ݠ‬DŽ 1. ‫ޚ‬໛Ѯ⸱䝌Ⲥᷛ‫ޚ‬⒊⎆↨䕗ೄ䲒ˈৃḍ᥂∈Ϣᑳ∈ᷛ‫ޚ‬Ẕ⌟ᮍ⊩ ᮍ⊩4500-NO2– B‫ޚ‬໛⌧ᑺЎ0.150mg/Lⱘᷛ‫ޚ‬⒊⎆ˈ 2.⫼ℸ⌧ᑺЎ0.150mg/Lⱘ⒊⎆ҷ᳓ḋકDŽᣝ✻Ϟ䗄䞡∂࣪⊩⌟䆩⌕⿟䖯㸠⌟䆩DŽ 3. ⫼ᷛ‫ޚ‬⒊⎆⌟ᕫⱘ᭄᥂᷵‫ޚ‬ᷛ‫ޚ‬᳆㒓ˈ೼Ҿ఼㦰ऩЁ䗝ᢽᷛ‫ޚ‬⒊⎆᷵‫⿟ޚ‬ᑣ˖ Ҿ఼ൟো 㦰ऩ䗝ᢽ DR 5000 䗝乍/ ᳈໮/ ᷛ‫ޚ‬䇗ᭈ DR 2800 䗝乍/ ᳈໮/ ᷛ‫ޚ‬䇗ᭈ DR 2700 䗝乍/ ᳈໮/ ᷛ‫ޚ‬䇗ᭈ DR/2500 䗝乍/ ᷛ‫ޚ‬䇗ᭈ DR/2400 䗝乍/ ᷛ‫ޚ‬䇗ᭈ 4. ᠧᓔᷛ‫ޚ‬䇗ᭈ⬠䴶ˈ⹂䅸᥹ফᔧࠡᷛ‫ޚ‬⒊⎆⌧ᑺDŽབᵰՓ⫼њ݊Ҫ⌧ᑺⱘᷛ‫ޚ‬⒊⎆ˈ䕧ܹᷛ‫ޚ‬⒊⎆ⱘᅲ䰙⌧ᑺˈᑊ⹂䅸⫼ℸ
⒊⎆⌧ᑺ᷵‫ޚ‬ᷛ‫ޚ‬᳆㒓DŽ
ᮍ⊩㊒⹂ᑺ
⿟ᑣো Ҿ఼ൟো
DR 5000 DR 2800 DR 2700 DR/2500 DR/2400
ᷛḋ⌧ᑺ
0.150mg/L NO2 –N
-
371
㊒⹂ᑺ ‫݋‬᳝95%㕂ֵᑺⱘ⌧ᑺऎ䯈 0.147–0.153 mg/L NO2 –N 0.147–0.153 mg/L NO2-–N 0.147–0.153 mg/L NO2 –N 0.146–0.154 mg/L NO2-–N 0.146–0.154 mg/L NO2 –N
1 2 1 1 1
䞡∂࣪⊩(㉝ᵩࣙ)⌟䆩⌕⿟
1. 䗝ᢽ⌟䆩⿟ᑣDŽখ✻Ҿ఼䆺 㒚䇈ᯢ ⱘ㽕∖ᦦܹ䗖䜡఼ (‫݋‬
2. ৥↨㡆ⲓЁࡴܹ10 mLḋ કDŽ
ԧᮍ৥䇋খ㾕⫼᠋᠟‫)ݠ‬DŽ
3. ‫ޚ‬໛ḋક˖৥↨㡆ⲓЁࡴܹ NitraVer® 3Ѯ⸱䝌Ⲥ䆩ࠖ㉝ᵩ ࣙˈาϞาᄤDŽ
4. ᨛᰗˈՓ㉝᳿⒊㾷ˈ㢹᳝Ѯ ⸱䝌Ⲥᄬ೼ˈ⒊⎆Ӯਜ㉝㑶 㡆DŽ
⍋∈᷵‫ޚ‬
∃࣪⠽⌧ᑺ䍙䖛100mg/LӮᇐ㟈⌟䆩㒧ᵰ‫أ‬ԢDŽ೼Ẕ⌟᳝ᑆᡄⱘḋકᯊᖙ乏Փ⫼ࡴᷛ⊩䖯㸠᷵‫ޚ‬DŽ‫ޚ‬໛᷵‫ޚ‬Փ⫼ᷛ‫ޚ‬⒊⎆ˈ⌧ ᑺЎ0.06mg/Lˈ0.1mg/Lˈ0.3mg/L੠0.4mg/Lⱘ⸱䝌Ⲥᷛ‫ޚ‬⒊⎆DŽ 1.‫ޚ‬໛1L৿∃䞣ϢḋકⳌৠⱘ∃∈ˈՓ⫼ҹϟ䕀ᤶ݀ᓣ˖ a.৥1Lএ行ᄤ∈ЁࡴܹACS∃࣪䩴ˈ‫ܟ‬᭄Ў∃࣪⠽ⱘ⌧ᑺ(g/L) x (1.6485) ⊼˖䗮ᐌ⍋∈ⱘ∃࣪⠽⌧ᑺᰃ18.8 g/L b.ᕏᑩ᧙ᢠℸ⒊⎆⹂ֱ݊ᰃഛ䋼⒊⎆ˈ೼‫ޚ‬໛ᷛ‫ޚ‬⒊⎆ᯊᇚℸ⒊⎆ҷ᳓এ行ᄤ∈԰Ў龜䞞∈DŽ 2.⫼鼠⎆ᵾ鼠প0.6ˈ1ˈ3ˈ4mL10-mg/L∂ü⸱䝌Ⲥᷛ‫ޚ‬⒊⎆˄NIST,ѻક䅶䋻ো30749˅ ˈ㟇4Ͼ100mLᆍ䞣⫊ЁDŽ 3.⫼‫ޚ‬໛དⱘ∃∈龜䞞㟇ࠏᑺˈ⏋ࣔDŽ 4.⫼ℸ∃∈԰Ў0-mg/L⸱䝌Ⲥᷛ‫ޚ‬⒊⎆DŽ
3.೼ᅝ⫓⫊⫊乜໘ⲪϞⲪᄤDŽ 乴 4ˊਃࡼҾ఼ᅮᯊ఼DŽ䅵ᯊডᑨ ‫צ‬ᅝ⫓⫊᭄⃵ҹ⏋ࣔDŽ㢹᳝Ѯ 20ߚ䩳DŽ ⸱䝌Ⲥᄬ೼ˈ⒊⎆Ӯਜ㉝㑶㡆DŽ
. ぎⱑḋ‫ޚ‬໛˖ডᑨࠄᯊৢ৥ 6.᪺ᣁぎⱑㅵᑊᇚ݊ᦦܹḋક ঺ϔ↨㡆ⲓЁࡴܹ10 mLḋકDŽ ∴ЁDŽ ᣝϟĀZero(䳊)ā䬂䖯㸠䇗䳊DŽ 䖭ᯊሣᐩᰒ冫˖ 0.000 mg/L NO2–N
7. ᪺ᣁḋકᅝ⫓⫊ᑊᦦܹḋક ∴ЁDŽ ᣝĀRead(䇏᭄)ā䬂䇏প㒧ᵰˈ ऩԡmg/LˈNO2–N.DŽ
ᑆᡄ⠽䋼
㸼2 ᑆᡄ⠽䋼
ᑆᡄ៤ߚ ϝӋ䫥行ᄤ 䞥行ᄤ 䪟行ᄤ ∃䪖䝌Ⲥ行ᄤ Ѯ䪰行ᄤ ϝӋ䪕行ᄤ Ѯ䪕行ᄤ 䪙行ᄤ ∲行ᄤ ‫أ‬䩦䝌Ⲥ行ᄤ ⸱䝌ḍ行ᄤ 䫊行ᄤ ᔎ⇻࣪ǃ䖬ॳᗻ⠽䋼 ᡫᑆᡄ∈ᑇঞ໘⧚ᮍ⊩ ᓩ䍋≝⎔㗠ᑆᡄDŽ ᓩ䍋≝⎔㗠ᑆᡄDŽ ᓩ䍋≝⎔㗠ᑆᡄDŽ ᓩ䍋≝⎔㗠ᑆᡄDŽ ᇐ㟈⌟䆩㒧ᵰ‫أ‬ԢDŽ ᓩ䍋≝⎔㗠ᑆᡄDŽ ᇐ㟈⌟䆩㒧ᵰ‫أ‬ԢDŽ ᓩ䍋≝⎔㗠ᑆᡄDŽ ᓩ䍋≝⎔㗠ᑆᡄDŽ ᓩ䍋≝⎔㗠ᑆᡄDŽ ∈ḋЁབᵰᄬ೼ᕜ催৿䞣ⱘ⸱䝌ḍ PJ/ ˈ݊Ёⱘϔ䚼ߚӮ㹿䖬ॳЎѮ⸱䝌ḍˈ䖭辵ব࣪ৃ㛑ᰃ㞾 ✊থ⫳ⱘˈгৃ㛑Ӯ೼⌟䞣䖛⿟Ёথ⫳ˈ಴ℸˈ∈ḋЁህϔᅮӮᄬ೼ϔᅮ䞣ⱘѮ⸱䝌ḍʚ ᓩ䍋≝⎔㗠ᑆᡄDŽ ӏԩ⌧ᑺϟ䛑᳝ᑆᡄDŽ
ᷛḋ⌧ᑺ
0.150mg/L NO2-–N
375
㊒⹂ᑺ ‫݋‬᳝95%㕂ֵᑺⱘ⌧ᑺऎ䯈 0.147–0.153 mg/L NO2-–N 0.147–0.153 mg/L NO2 –N 0.147–0.153 mg/L NO2 –N 0.140–0.160 mg/L NO2-–N 0.140–0.160 mg/L NO2-–N
5. ਃࡼҾ఼ᅮᯊ఼DŽ 䅵ᯊডᑨ20 ߚ䩳DŽ
6. ぎⱑḋ‫ޚ‬໛˖ডᑨࠄᯊৢ ৥঺ϔ↨㡆ⲓЁࡴܹ10 mLḋ કDŽ
7. ᪺ᣁぎⱑㅵᑊᇚ݊ᦦܹḋક ∴ЁDŽ
8. ᣝϟĀZero(䳊)ā䬂䖯㸠䇗 䳊DŽ䖭ᯊሣᐩᰒ冫˖ 0.000 mg/L NO2–N
9.᪺ᣁḋકㅵᑊᇚ݊ᦦܹḋક∴ ЁDŽ
10. .ᣝĀRead(䇏᭄)ā䬂䇏প 㒧ᵰˈऩԡmg/LˈNO2–N.DŽ
⬉ᇐ⥛
⍜㗫ક੠᳓ҷકֵᙃ
䳔㽕⫼ࠄⱘ䆩ࠖ
䆩ࠖৡ鹵ঞᦣ䗄 NitraVer®3Ѯ⸱䝌Ⲥ䆩ࠖ㉝ᵩࣙ ៪ NitraVer®3Ѯ⸱䝌Ⲥ AccuVac®ᅝ⫓⫊ ᭄䞣/↣⃵⌟䞣 1
1
ऩԡ 100/pkg
25/pkg
ѻક䅶䋻ো 2107169
2512025
䳔㽕⫼ࠄⱘҾ఼˄AccuVac˅
䆩ࠖৡ鹵ঞᦣ䗄 50Baidu NhomakorabeaL⚻ᵃ ᭄䞣/↣⃵⌟䞣 1 ऩԡ Ͼ ѻક䅶䋻ো 50041H
♉ᬣᑺ ↣0.010 Abs਌‫ܝ‬ᑺᬍবᯊⱘ⌧ᑺব࣪ 0.002mg/L NO2 –N 0.002mg/L NO2 –N 0.002mg/L NO2 –N 0.002mg/L NO2 –N 0.002mg/L NO2 –N
ᮍ⊩㾷䞞
ḋકЁⱘѮ⸱䝌ⲤϢᇍ⇼෎㣃⻎䝌ডᑨˈ⫳៤Ё䯈ѻ⠽䞡∂ⲤDŽ䞡∂ⲤজϢ䫀ব䝌㗺ড়៤㉝㑶㡆ⱘ໡ড়⠽ˈ䆹⠽䋼ⱘ䞣Ϣ ḋકЁѮ⸱䝌Ⲥⱘ৿䞣៤ℷ↨՟݇㋏DŽᴀ⌟䆩㒧ᵰᰃ೼⊶䭓Ў507 nmⱘ‫⊶ܝ‬ϟ䇏পⱘDŽ
Ѯ⸱䝌Ⲥ
USEPA1 䞡∂࣪⊩ ⌟䞣㣗ೈ˖Ԣ䞣⿟ 0.002 - 0.300 mg/L NO2–N ᑨ⫼㣗ೈ˖⫼Ѣ∈ǃᑳ∈Ϣ⍋∈
1
ᮍ⊩ 8507 ㉝ᵩࣙ៪ᅝ⫓⫊
USEPA䅸ৃⱘᑳ∈ߚᵤ⊩ˈ㘨䙺݀᡹ˈ44(85), 25505 (5ˈ1, 1979)
⌟䆩‫ޚ‬໛Ꮉ԰
㸼1 Ҿ఼䆺㒚䇈ᯢ
Ҿ఼ൟো
DR 5000 DR 2800 DR 2700 DR/2500 DR/2400
⌟䆩ᓔྟࠡ˖
Ўњ⌟䆩㒧ᵰ᳈ࡴ‫↣ˈ⹂ޚ‬ϔᡍᮄⱘ䆩ࠖ䛑ᑨ䆹⌟ᅮ䆩ࠖぎⱑؐDŽ䆩ࠖぎⱑⱘ⌟ᅮৠḋᣝ✻⌟䆩ℹ偸䖯㸠ˈাᰃᡞḋકᤶ៤এ行 ᄤ∈䖯㸠⌟䆩DŽ
‫ޚ‬໛ϟ߫⠽ક˖
ৡ鹵ঞᦣ䗄 ㉝ᵩࣙ⌟䆩 NitraVer® 3Ѯ⸱䝌Ⲥ䆩ࠖ㉝ᵩࣙ ↨㡆ⲓ(㾕Ҿ఼䆺㒚䇈ᯢ ) ᅝ⫓⫊⌟䆩 NitraVer® 3Ѯ⸱䝌Ⲥ䆩ࠖ ᅝ⫓⫊㺙 50-mL⚻ᵃ ぎⱑḋ⫼↨㡆ⲓ (㾕Ҿ఼䆺㒚䇈ᯢ ) 䅶䌁ֵᙃ䇋খⳟ⍜㗫ક੠᳓ҷકֵᙃ ᭄䞣
↨㡆ⲓൟো 2495402 2495402 2495402 2427606 2427606
㉝ᵩࣙ ↨㡆ⲓᮍ৥ ࠏᑺ㒓ᳱ৥⫼᠋ ࠏᑺ㒓ᳱ৥েᮍ ࠏᑺ㒓ᳱ৥েᮍ — —
ᅝ⫓⫊ 䗖䜡఼ൟো A23618 — — — — ↨㡆ⲓൟো 2427606 2122800 2122800 2427606 2427606 䗖䜡఼ൟো A23618 LZV584 (C) LZV584 (C) — —
᥼㤤Փ⫼ⱘᷛ‫ޚ‬ḋકǃ䆩ࠖϢҾ఼
ৡ鹵ঞᦣ䗄 ߚᵤ໽ᑇ ぎⱑḋ⫼ᅝ⫓⫊ এ行ᄤ∈ Ѯ⸱䝌䩴ˈACS ऩԡ Ͼ 25/pkg 4L 454 g ѻક䅶䋻ো 2936701 2677925 27256 245201
Ѯ⸱䝌Ⲥ ㄀ 385 义 ݅ 748 义
♉ᬣᑺ ↣0.010 Abs਌‫ܝ‬ᑺᬍবᯊⱘ⌧ᑺব࣪ 0.002mg/L NO2 –N 0.002mg/L NO2 –N 0.002mg/L NO2 –N 0.002mg/L NO2 –N 0.002mg/L NO2 –N
⿟ᑣো
Ҿ఼ൟো
DR 5000 DR 2800 DR 2700 DR/2500 DR/2400
䞡∂࣪⊩(ᅝ⫓⫊)⌟䆩⌕⿟
1. 䗝ᢽ⌟䆩⿟ᑣDŽখ✻Ҿ఼䆺 㒚䇈ᯢ ⱘ㽕∖ᦦܹ䗖䜡఼DŽ (‫݋‬
ԧᮍ৥䇋খ㾕⫼᠋᠟‫)ݠ‬DŽ
2. ḋક‫ޚ‬໛˖೼50 mL⚻ᵃЁ ᬊ䲚㟇ᇥ40 mLḋકDŽ ৥㺙᳝NitraVer® 3Ѯ⸱䝌Ⲥ䆩 ࠖⱘᅝ⫓⫊‫ݙ‬㺙⒵ḋકDŽℸ䖛 ⿟Ёᅝ⫓⫊⫊乜ϔᅮ㽕⍌≵೼ ∈ḋ‫ݙ‬DŽ