KHF-100 Karl Fischer oven headspace samplerUsing an empty core injection needle design, one operation can achieve both carrier gas input and water vapor output. At the same time, due to the new gas path design, the transmission of water vapor can be achieved with a very small flow rate. Each injection only requires the replacement of the sample bottle, which is convenient to operate without waiting for the bottle cap to cool down.The detection accuracy can reachppmGrade, very suitable for industries such as lithium batteries, plastic particles, and petrochemicals that have high requirements for moisture detection.
2Hollow core gas needle injection and gas delivery pipeline with heating function, no dead volume of water vapor or condensation, simpler operation, and greatly improve the accuracy and repeatability of the instrument;
4There are 5 built-in methods to choose from, 8 calculation formulas for convenient sample testing, and customized sample units such as%, ppm, mg/kg, etc., making the result units more user-friendly;
5The temperature can reach 300 ℃, which can meet the testing requirements of most samples. The airflow can be adjusted from 0-100ml, suitable for samples with various water release rates;
7There is no need to wait for the previous sample bottle to cool down before proceeding to the next sample measurement. During the process of replacing the sample bottle, the sample bottle always remains sealed, resulting in higher and more accurate measurement efficiency. Especially for samples with strong moisture absorption, there is no need to worry about the interference of moisture in the air.
9Headspace sampling technology allows only gas to enter the reaction cup of the moisture analyzer without contaminating the reaction cup and electrolytic electrode;
name |
index |
model |
V310S-HKF |
measuring range |
3---19999.9Microgramwater |
measurement speed |
2.24mg H2O/min(Large) |
Temp Accuracy |
1℃ |
measurement accuracy |
3μG (10 micrograms -100 μ g)MicrogramH2O) ≤ 0.3% (water content>100MicrogramH2O) |
resolution |
0.1μg H2O |
Delayed titration |
0-9999second |
Sample method |
5An independent method |
calculation formula |
Built in 8 calculation formulas |
Temperature range |
Room temperature -300 ℃ |
heating rate |
30℃/min (50-180℃,220V) |
Flow range |
0-100ml/min |
Sample bottle specifications |
10ml(5ml, 20ml optional) |
Data printing |
Built in thermal printer |
Lithium battery material:Moisture detection of lithium battery materials such as lithium cobalt oxide, lithium nickel oxide, carbon composite lithium iron phosphate positive electrode materials for lithium-ion batteries, lithium titanium oxide and its composite negative electrode materials for lithium-ion batteries, nano lithium iron phosphate, lithium manganese oxide, nickel cobalt manganese oxide, lithium titanium oxide, lithium iron phosphate, lithium nickel cobalt aluminum oxide, nickel cobalt aluminum ternary composite hydroxide, lithium hexafluorophosphate, lithium hexafluorophosphate, lithium hexafluorophosphate electrolyte, graphite negative electrode materials, lithium battery membranes, and electrode sheets.
Other substances that are insoluble or have side reactions with Karl Fischer reagent:Ore, carbonate and metal oxides, carbon powder,Petrochemical products containing additives (engine oil, lubricating oil, and grease),Raw materials for drugs, freeze-dried powder samples, leather, sealant, etc.
1Sample Name: Lithium Iron Phosphate
Determination order |
Injection volume g |
Moisture content ug |
Measurement duration m: s |
Measurement result ppm |
1 |
0.6185 |
603.2 |
5:35 |
975.263 |
2 |
0.5235 |
510.7 |
5:12 |
975.549 |
3 |
0.6049 |
583.8 |
5:28 |
965.118 |
Average value:971.9767ppm | ||||
Relative standard deviation:0.6113% |
2Sample Name: Lithium Cobaltate
Determination order |
Injection volume g |
Moisture content ug |
Measurement duration m: s |
Measurement result ppm |
1 |
2.5861 |
513.6 |
4:53 |
198.6 |
2 |
2.5352 |
508.3 |
4:32 |
200.5 |
3 |
2.6049 |
508.5 |
4:33 |
195.2 |
Average value:198.1ppm | ||||
Relative standard deviation:1.3554% |
3、Sample Name:Lithium battery negative electrode membrane
Determination order |
Injection volume g |
Moisture content ug |
Measurement duration m: s |
Measurement result ppm |
1 |
0.9782 |
1292.89 |
5:13 |
1321.7 |
2 |
1.1833 |
1536.28 |
4:42 |
1298.3 |
3 |
0.8970 |
1172.56 |
4:54 |
1307.2 |
Average value:1309.07ppm | ||||
Relative standard deviation:1.3297% |
4、Sample Name:Polyurethane plastic particles
Determination order |
Injection volume g |
Moisture content ug |
Measurement duration m: s |
Measurement result% |
1 |
1.0918 |
288.6 |
6:23 |
0.0264 |
2 |
1.1029 |
303.9 |
6:32 |
0.0276 |
3 |
1.2331 |
325.8 |
5:58 |
0.0264 |
4 |
1.3120 |
355.7 |
6:15 |
0.0271 |
Average value:0.027% | ||||
Relative standard deviation:2.178% |
5Sample Name:Acrylic plastic particles
Determination order |
Injection volume g |
Moisture content ug |
Measurement duration m: s |
Measurement result ppm |
1 |
2.8543 |
1102.6 |
5:13 |
386.29 |
2 |
3.1245 |
1191.0 |
5:22 |
381.12 |
3 |
2.9150 |
1132.0 |
4:58 |
388.34 |
Average value:385.25ppm | ||||
Relative standard deviation:0.966% |
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