Food additive sodium citrate moisture analyzer

Food Additive Sodium Citrate Moisture Analyzer - Carl Fischer Moisture Meter - KWLS-3000F

Reagents and materials: anhydrous methanol.

Karl Fischer reagent: Formulated and titrated by GB/T606.

This instrument is suitable for the determination of the moisture content of sodium citrate, a food additive prepared by fermentation and purification of starchy or sugar raw materials.

Analysis steps:

Take 20 mL of anhydrous methanol and titrate it to the end point with Karl Fischer reagent under agitation without recording the reading. Then quickly add an appropriate amount of the specimen (sodium citrate 0.1 g) and continue titration to the end point.

Technical Specifications:

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Model:

KWLS-3000F

Measurement method:

Karl-Fischer Coulometric method

Display of measuring range:

0.1 ug water - 300 mg water

Water content range:

0.0001%（1ppm）—100%

resolution:

0.1 ug water

Display mode:

LCD touch screen display

accuracy:

When the water content is 2 ug water - 500 ug water, the measurement value error ≤± 1 ug

When the water content is above 500 ug water, the measured value error ≤± 0.2% (excluding injection error)

End Point Indication:

The screen displays \Audible Warning\End Light Prompt

Blank handling:

The blank current microprocessor automatically controls the compensation to ensure that the blank can be accurately deducted within the sample enrichment time of 10 minutes

Mixing speed:

Adjustable controls

Drift compensation:

The microprocessor automatically controls, calculates and compensates

Data entry:

Touch screen operation

Sample Number:

User-defined

Electrolysis speed:

2.4 mg water/minute adjustable

Electrolytic current:

0~400 mAh

Data storage:

500

Printing function:

Thermally efficient printer, 56 mm paper width

Print content:

ug \ ppm \ mg/L \ sample number \ experimenter \ date

Sodium citrate dissolves 1 g (25 °C) in 1.5 mL of water, is insoluble in ethanol, and is stable in air.

Features of moisture analyzer:

1. LCD LCD touch screen display, Chinese and English operating system, real-time display of instrument working status;

2. Single-chip microcomputer and computer composite control system, double platinum electrode, intelligent analysis and determination of moisture;

3. Automatic drainage function, the instrument automatically injects new reagents and eliminates waste liquid, and the operator does not need to contact the reagents;

4. Reagent use status reminder function, when the reagent is timed, the instrument automatically reminds the replacement reagent;

5. Built-in a variety of calculation formulas, users can choose the appropriate test method;

6. Automatically calculate and print ug \ ppm \ percentage content \ mg/L \ sample name \ experimental date and other contents;

7. The blank current microprocessor automatically controls the compensation, and the reagent can quickly reach the equilibrium state;

8. The instrument has a self-test function, if the electrode has a short circuit or a broken circuit failure, the instrument will automatically prompt the user;

9, 0-400 mA large electrolytic current, high detection sensitivity, fast analysis speed;

10. Surface electrostatic spraying treatment, anti-corrosion, easy to clean;

11, perpetual calendar function, year, month, day, week, hour, minute, second, automatic storage after power failure, 10 years without loss;