Automatic Drug Drip Tester
Contact Info
- Building 1, No. 5500 Yuanjiang Road, Minhang District, Shanghai,
- 高洁
- 13761436048
- 3982822529@qq.com
This instrument is applicable to the Method 1: Electric Block Air Heating Method for Drop Point Determination 0614 in the 2025 edition of the Chinese Pharmacopoeia, i.e., the temperature at which the first drop of liquid drips from the grease cup under specified standard conditions. It is specially applicable to test samples such as medicinal fats and oils (white petrolatum, yellow petrolatum), some edible waxes (e.g., palm wax), fat additives; lubricating grease, paraffin wax, microcrystalline wax, beeswax (for cosmetics), pharmaceutical preparations (e.g., suppositories), synthetic waxes (resin wax, rosin wax), ointment bases (hydrocarbon bases); emulsion bases (glyceryl stearate combinations), other semi-solid bases (base materials for ointments and salves), suppository bases (synthetic glycerin fatty acid esters); cosmetic raw materials, lipstick bases (mixtures of beeswax and ozokerite), etc.
I. Main Functions and Features of the YJ-0614D Automatic Drug Drop Point Tester
1. Heating Furnace Structure: The heating furnace includes a heating body with a built-in heating element and a platinum resistance sensor; the middle hollow slot is the sample chamber for placing the sample testing assembly, which includes a grease cup chuck, a grease cup filled with sample, and a grease cup slit at the lower part. There is a light source below the heating body, which emits light through the slit hole of the slit sleeve onto the signal sensor. When the sample softens and drips to block the light hole, the signal sensor sends a signal, and the instrument records the temperature.
2. Sample Testing Assembly: The middle is the grease cup for placing the sample; the upper part is the chuck for clamping the upper end of the grease cup and connecting the handle; the lower part is the slit sleeve for transmitting light and catching the dripping sample when the drop point is reached.
3. Inspection of the Assembly's Slit Sleeve: Enter the main interface, click the "Test" button, set the preset temperature to no more than 40°C, click the "Auto Detect" button to enter the automatic test interface.
4. Place the empty grease cup sample assembly vertically into the furnace sample chamber, align the lower observation port of the slit sleeve to face directly forward, and align the light-transmitting hole of the furnace with the light-transmitting hole of the slit sleeve to ensure that the detection hole can transmit light.
5. This instrument is easy to operate, can automatically control temperature and generate results.
II. Main Technical Parameters of the YJ-0614D Automatic Drug Drop Point Tester
1. Drop Point Measurement Range: Room temperature to 300°C
2. Measurement Mode: Automatic measurement
3. Linear Heating Rate: 0.2, 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0 (°C/min)
4. Measurement Repeatability: ±1.0°C when <200°C; ±1.0°C when 200°C-300°C
5. Minimum Reading Value: 0.1°C
6. Instrument Weight: 11kg
III. Relevant Provisions of the 2025 Edition of the Chinese Pharmacopoeia 0614 Drop Point Determination Method, Method 1: (2) Electric Block Air Heating Method
Method 1 is for the determination of easily pulverized solid drugs
(2) Electric Block Air Heating Method
An automatic or semi-automatic drop point tester shall be used.
Take an appropriate amount of test sample that has been dried (see Method 1 (1)), place it in the metal grease cup for drop point determination (same as in Method 1 (1)); heat the drop point tester until it is about 10°C lower than the specified lower limit of the drop point, insert the grease cup containing the test sample into the heating block, continue heating, adjust the heating rate to 1.0-1.5°C per minute, repeat the determination 3 times. If the difference between the drop points measured in the 3 determinations is not more than 1°C, take the average value as the result.
0, 3.0, 4.0, 5.0 (°C/min)
4. Measurement Repeatability: ±0.5°C when <200°C; ±1°C when 200°C-300°C
5. Minimum Reading Value: 0.1°C
6. Instrument Weight: 11kg
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