NL2032363B1 - Spray drying method for preparing candidate of salt water reference material - Google Patents

Spray drying method for preparing candidate of salt water reference material Download PDF

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Publication number
NL2032363B1
NL2032363B1 NL2032363A NL2032363A NL2032363B1 NL 2032363 B1 NL2032363 B1 NL 2032363B1 NL 2032363 A NL2032363 A NL 2032363A NL 2032363 A NL2032363 A NL 2032363A NL 2032363 B1 NL2032363 B1 NL 2032363B1
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NL
Netherlands
Prior art keywords
spray dryer
salt water
spray
turning
sample
Prior art date
Application number
NL2032363A
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Dutch (nl)
Inventor
Zhu Lin
Tao Liping
Zhang Ming
Liu Dao
An Guorong
Shi Hua
Zhang Jianmin
Original Assignee
Qinghai Geological And Mineral Testing Center
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Priority to NL2032363A priority Critical patent/NL2032363B1/en
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Publication of NL2032363B1 publication Critical patent/NL2032363B1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N2001/2893Preparing calibration standards

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

U I T T R E K S E L A spray drying method for preparing a candidate of a salt water reference material is provided, including the following steps: filtering salt water with a 25 um filter membrane, and accurately pipetting 50 nflJ of filtered salt water 11) a glass colorimetric 5 tube; turning on an air exhauster of a laboratory mini spray dryer, turning on a heater of the spray dryer, turning on a compressor and a peristaltic pump after the inlet temperature of the spray dryer reaches 125°C, and cleaning a nozzle, where outlet temperature of the spray dryer is 140°C when the inlet temperature 10 of the spray dryer reaches 125°C; drawing the filtered salt water sample into the spray dryer by using a ruby nozzle, and spray— drying the sample; and taking out the spray—dried, sample, and performing prompt sealing for preservation, to obtain a finished product. 15 (+ Fig. 1)

Description

P1443 /NLpd
SPRAY DRYING METHOD FOR PREPARING CANDIDATE OF SALT WATER
REFERENCE MATERIAL
TECHNICAL FIELD
The present disclosure belongs to the field of testing tech- nologies of geological experiments, and in particular, to a spray drying method for preparing a candidate of a salt water reference material.
BACKGROUND ART
A salt water reference material is prepared from natural salt water and used for monitoring and controlling in the process of salt water analysis. An existing process is sampling salt water and then performing sealed preservation. A salt water reference material prepared according to the existing process has poor sta- bility and is difficult to transport.
SUMMARY
To overcome the above defects in the prior art, an objective of the present disclosure is to provide a spray drying method for preparing a candidate of a salt water reference material, which is easy to operate. A finished product prepared according to this method has high stability and is easy to preserve.
To achieve the above objective, the present disclosure adopts the following technical solution:
A spray drying method for preparing a candidate of a salt wa- ter reference material is provided, including the following steps: step 1: filtering salt water with a 25 um filter membrane, and accurately pipetting 50 mL of filtered salt water to a glass colorimetric tube; step 2: turning on an air exhauster of a laboratory mini spray dryer, setting power of the air exhauster to 90 3, setting inlet temperature of the spray dryer to 125°C, turning on a heater of the spray dryer, turning on a compressor and a peristaltic pump after the inlet temperature of the spray dryer reaches 125°C, and cleaning a drawing nozzle, where outlet temperature of the spray dryer is 140°C when the inlet temperature of the spray dryer reach- es 125°C; step 3: drawing the filtered salt water sample into the spray dryer by using a ruby drawing nozzle, and spray-drying the sample; and step 4: taking out the spray-dried sample, and performing prompt sealing for preservation, to obtain a finished product.
In step 2, a compression speed of the compressor is set to 400 L/h, and a working ratio of the peristaltic pump is set to 25%.
Compared with the prior art, in the present disclosure, a candidate of a salt water reference material is prepared by using the spray drying method, such that a process is easy to control, and a finished product is convenient to preserve.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a flowchart of a process according to the present disclosure.
DETAILED DESCRIPTION OF THE EMBODIMENTS
The implementations of the present disclosure are described below in detail with reference to the accompanying drawings and examples.
A spray drying method for preparing a candidate of a salt wa- ter reference material is provided. Referring to FIG. 1, the meth- od includes the following steps:
Step 1: Filter salt water with a 25 pm filter membrane, and accurately pipette 50 mL of filtered salt water to a glass colori- metric tube.
Step 2: Turn on an air exhauster of a laboratory mini spray dryer, set power of the air exhauster to 90 %, set inlet tempera- ture of the spray dryer to 125°C, turn on a heater of the spray dryer, turn on a compressor (whose compression speed is set to 400
L/h) and a peristaltic pump (whose working ratio is set to 25%) after the inlet temperature of the spray dryer reaches 125°C, and clean a nozzle, where outlet temperature of the spray dryer is 140°C when the inlet temperature of the spray dryer reaches 125°C.
Step 3: Draw the filtered salt water sample into the spray dryer by using a ruby nozzle, and spray-dry the sample.
Step 4: Take out the spray-dried sample, and perform prompt sealing for preservation, to obtain a finished product.
Before use, the finished product of the candidate of the salt water reference material can be reduced to a twice diluted solu- tion of original salt water by opening a sealed packaging bag and quantitatively adding the finished product in 100 mL of distilled water for dissolution.
The following test data is obtained when the sample is de- tected according to an inductively coupled plasma atomic emission spectrometry and a volumetric method:
Concentration of lithium: 131 mg/mL
Concentration of strontium: 25 mg/mL.

Claims (2)

CONCLUSIESCONCLUSIONS 1. Sproeidroogmethode voor het bereiden van een kandidaat van een zoutwaterreferentiemateriaal, die de volgende stappen omvat: stap 1: het filtreren van zout water met een filtermembraan van 25 um en het nauwkeurig pipetteren van 50 ml aan gefilterd zout water in een glazen colorimetrische buis; stap 2: het aanzetten van een luchtafzuiger van een laboratorium mini sproeidroger, het instellen van het vermogen van de luchtafzuiger op 905, het instellen van de inlaattemperatuur van de sproeidroger op 125 °C, het inschakelen van een verwarming van de sproeidroger, het inschakelen van een compressor en een peri- staltische pomp nadat de inlaattemperatuur van de sproeidroger 125 °C bereikt, en het reinigen van een mondstuk, waarbij de uit- laattemperatuur van de sproeidroger 140 °C is wanneer de in- laattemperatuur van de sproeidroger 125 °C bereikt; stap 3: het trekken van het gefilterde zoutwatermonster in de sproeidroger met behulp van een robijn zuigmond en het sproeidro- gen van het monster; en stap 4: het uitnemen van het gesproeidroogde monster en het uitvoeren van een onmiddellijke verzegeling voor bewaring, om een afgewerkt product te verkrijgen.1. Spray drying method for preparing a candidate salt water reference material, comprising the following steps: step 1: filtering salt water with a 25 um filter membrane and accurately pipetting 50 ml of filtered salt water into a glass colorimetric tube; step 2: turning on an air extractor of a laboratory mini spray dryer, setting the power of the air extractor to 905, setting the inlet temperature of the spray dryer to 125 °C, turning on a heater of the spray dryer, turning on a compressor and a peristaltic pump after the inlet temperature of the spray dryer reaches 125 °C, and cleaning a nozzle, where the outlet temperature of the spray dryer is 140 °C when the inlet temperature of the spray dryer reaches 125 °C ; step 3: drawing the filtered saltwater sample into the spray dryer using a ruby suction nozzle and spray drying the sample; and step 4: extracting the spray-dried sample and performing immediate sealing for preservation to obtain a finished product. 2. Sproeidroogmethode voor het bereiden van een kandidaat van een zoutwaterreferentiemateriaal volgens conclusie 1, waarbij in stap 2 een compressiesnelheid van de compressor wordt ingesteld op 400 L/h en een arbeidsverhouding van de peristaltische pomp wordt in- gesteld op 25%.A spray drying method for preparing a candidate saltwater reference material according to claim 1, wherein in step 2 a compression rate of the compressor is set to 400 L/h and a duty ratio of the peristaltic pump is set to 25%.
NL2032363A 2022-07-04 2022-07-04 Spray drying method for preparing candidate of salt water reference material NL2032363B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2032363A NL2032363B1 (en) 2022-07-04 2022-07-04 Spray drying method for preparing candidate of salt water reference material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2032363A NL2032363B1 (en) 2022-07-04 2022-07-04 Spray drying method for preparing candidate of salt water reference material

Publications (1)

Publication Number Publication Date
NL2032363B1 true NL2032363B1 (en) 2024-01-19

Family

ID=89621196

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2032363A NL2032363B1 (en) 2022-07-04 2022-07-04 Spray drying method for preparing candidate of salt water reference material

Country Status (1)

Country Link
NL (1) NL2032363B1 (en)

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