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首頁>產品中心>日本光明北川式氣體檢測管>氣體快速檢測管>111U甲基叔丁基醚(MTBE)氣體檢測管CH3OC(CH3)3 25-500ppm

甲基叔丁基醚(MTBE)氣體檢測管CH3OC(CH3)3 25-500ppm

簡要描述:

甲基叔丁基醚(MTBE)氣體檢測管CH3OC(CH3)3 25-500ppm,為追求更大的檢測量而使試劑加入量更多,會造成反應時間遲后甚至不能全部反應。此時采用的方法是在試劑用量局限范圍內,用減少或增加采樣量方法來加以解決。這就同化學容量分析、比色分析時所采用的方法道理是一樣的。

更新時間:2024-12-18

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甲基叔丁基醚(MTBE)氣體檢測管CH3OC(CH3)3 25-500ppm

甲基叔丁基醚(MTBE)氣體檢測管CH3OC(CH3)3 25-500ppm

Tube 11U
1. PERFORMANCE
1) Measuring range :10-1,000 ppm
Number of pump strokes 1(100mL)
2) Sampling time :1.5 minutes / 1 pump stroke
3) Detectable limit : 5 ppm
4) Shelf life :2 years
5) Operating temperature :10~40℃
6) Temperature compensation :Necessary (See "TEMPERATURE CORRECTION TABLE" )
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Yellow→Brown
2. RELATIVE STANDARD DEVIATION
RSD-low :10 % RSD-mid.:10 % RSD-high :5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH 3CO 2C 2H 5+Cr 6++H 2SO 4→Cr 3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
111U ETHYL ACETATE
TEMPERATURE CORRECTION COEFFICIENT TABLE
Scale Correction Coefficient (at 20℃)
Readings 10 ℃ 15 ℃ 20 ℃ 25 ℃ 30 ℃ 35 ℃ 40℃
(ppm) (50 °F) (59°F) (68°F) (77 °F) (86°F) (95°F) (104°F )
1,000 1.33 1.17 1.0 0.87 0.74 0.64 0.53
Substance Interference Coexistence
Alcohols Similar stain is produced. Higher reading are given.
Esters 〃〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
Whole reagent is discoloured
It the top of brown stain is
Paraffin hydrocarbons clear, the accuracy of
Pale brown.
readings is not affected.
Halogenated hydrocarbons
〃〃
FIG.1
0
200
400
600
800
1000
Trichloroethylene 〔ppm〕
FIG.1 Influence of Trichloroethylene
E thyl acetate indicating value 〔ppm 〕
100 200 300
800 1.38 1.19 1.0 0.86 0.73 0.63 0.53
600 1.40 1.20 1.0 0.86 0.72 0.63 0.53
400 1.40 1.20 1.0 0.85 0.70 0.58 0.46
200 1.40 1.20 1.0 0.84 0.68 0.55 0.42
100 1.50 1.25 1.0 0.81 0.62 0.48 0.33
50 1.50 1.25 1.0 0.77 0.54 0.43 0.32
30 1.50 1.25 1.0 0.77 0.53 0.42 0.30
10 1.50 1.25 1.0 0.75 0.50 0.40 0.30
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