Hengyuan Fine Chemical`s Solutions for 2025 Pharmacopoeia 2341 & 2342 Pesticide Residue Testing

September/12/2025

Hengyuan Fine Chemical Provides Solutions for 2025 Pharmacopoeia 2341 and 2342

The 2025 edition of the Chinese Pharmacopoeia, 2341 Pesticide Residue Determination Method, has undergone significant revisions. The existing methods for organochlorine, organophosphorus, and pyrethroid pesticides have been removed, and new methods for specific pesticides and medicinal material matrices have been added. The 2342 Plant Growth Regulator Residue Determination Method has expanded its detection range and types.

Hengyuan Fine Chemical can provide you with the following supporting solutions:

· Standard substances

This series includes a variety of pesticide standards suitable for GC-MS and LC-MS analysis.

· Pretreatment consumables

Provides consumables required for the QuEChERS method, such as anhydrous magnesium sulfate, N-propylethylenediamine, octadecylsilane-bonded silica gel, and other purification materials, as well as extraction and purification tubes.

· Chromatographic columns

We provide high-performance chromatographic columns suitable for gas chromatography, liquid chromatography, gas chromatography-mass spectrometry (GC-MS), and liquid-mass chromatography-mass spectrometry (LC-MS) to meet the separation requirements of different pesticide residue detection.

2025 Pharmacopoeia 2341, 2342 - Standard Substances
Pharmacopoeia	Description	Quantity	Specifications
2025 Pharmacopoeia 2341 Method 1	9 Organochlorine Standard Mixture in Toluene	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 1	22 Organochlorine Standard Mixture in Toluene:Isooctane = 2:98	10μg/mL	1mL
2025 Pharmacopoeia 2341 Method 2	12 Organophosphorus Pesticide Standard Mixture in Ethyl Acetate	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 3	Cypermethrin, Fenvalerate, and Deltamethrin in Toluene Deltamethrin Standard Mixture	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 GC-MS	91 Pesticides and Internal Standard Mixture in Acetonitrile	100μg/mL	6*1mL
2025 Pharmacopoeia 2341 Method 4 GC-MS	27 Pesticide Standard Mixture	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 GC-MS	91 Pesticides and Internal Standard Mixture - Group B Mix-21	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 GC-MS	91 Pesticides and Internal Standard Mixture - Group C Mix-40	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 GC-MS	Fenthion Isotope-D6	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 GC-MS	Atrazine-D5 (Deuterated Atrazine)	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 GC-MS	Diazinon-Isotope d10	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	526 Pesticides and Internal Standard Mixture Set	-	13*1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	38 Pesticide Mixture in Acetonitrile	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	59 Pesticide Mixture in Acetone	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	58 Pesticide Mixture in Acetone	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	62 Pesticide Mixture in Acetonitrile	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	59 Pesticide Mixture in Acetonitrile	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	57 Pesticide Mixture in Acetonitrile	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	66 Pesticide Mixture in Acetonitrile	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	13 Pesticide Freeze-Dried Mixture	50μg	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	57 Pesticide Mixture in Acetonitrile	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	54 Pesticide Mixture in Acetonitrile	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	Atrazine-D5 (Deuterated Atrazine) in Acetone	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	Fenthion Isotope-D6 in Acetone	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 4 LC-MS	Diazinon-Isotope d10 in Acetone	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method V	73 Banned Pesticide Mixture in Acetone	Different Concentrations	1mL
2025 Pharmacopoeia 2341 Method V	73 Banned Pesticide Mixture in Acetone	Different Concentrations	1mL
2025 Pharmacopoeia 2341 Method 5 GC-MS	50 Pesticide Mixture in Acetonitrile	Different Concentrations	1mL
2025 Pharmacopoeia 2341 Method 5 GC-MS	50 Pesticide Mixture in Acetonitrile	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 5 GC-MS	50 Pesticide Mixture in Acetonitrile	Different Concentrations	1mL


Pharmacopoeia	Description	Quantity	Specifications
2025 Pharmacopoeia 2341 Method 5 LC-MS	43 Pesticide Mixture in Acetonitrile	Different Concentrations	1mL
2025 Pharmacopoeia 2341 Method 5 LC-MS	43 Pesticide Mixture in Acetonitrile	50μg/mL	1mL
2025 Pharmacopoeia 2341 Method 5 LC-MS	43 Pesticide Mixture in Acetonitrile	Different Concentrations	1mL
2025 Pharmacopoeia 2341 Method 6 GC-MS	Mixed Standard of 9 Pesticide Residues in Acetonitrile	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 6 GC-MS	Mixed Standard of 9 Pesticide Residues in Acetonitrile	Different Concentrations	1mL
2025 Pharmacopoeia 2341 Method 6 LC-MS	Mixed Standard of 31 Pesticide Residues in Acetonitrile (5% DMF)	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 6 LC-MS	Mixed Standard of 31 Pesticide Residues in Acetonitrile (5% DMF)	Different Concentrations	1mL
Pharmacopoeia 2025 Edition 2341 Method 7	Carbon Disulfide	99.7%	2g
Pharmacopoeia 2025 Edition 2342 Plant Growth Regulators Method 1	Mixed Standard Kit of 59 Plant Growth Regulators	100μg/mL	2*1mL
2025 Pharmacopoeia 2341 Method 6 LC-MS	Mixed Standard of 8 Plant Growth Regulators in Methanol	100μg/mL	1mL
2025 Pharmacopoeia 2341 Method 6 LC-MS	Mixed Standard of 51 Plant Growth Regulators in Acetonitrile	100μg/mL	1mL
Pharmacopoeia 2025 Edition 2342 Plant Growth Regulators Method 2	Mixture of 9 plant growth regulators in methanol	100μg/mL	1mL
Pharmacopoeia 2025 Edition 2342 Plant growth regulators, Method 3	Ethephon	See certificate for details	250mg
Pharmacopoeia 2025 Edition 2341, 2342 - Pretreatment Consumables
Pharmacopoeia	Description
2025 Pharmacopoeia 2341 Method 1	4g Anhydrous Magnesium Sulfate, 1g Sodium Chloride
2025 Pharmacopoeia 2341 Method 1	Florisil Solid Phase Extraction Cartridge (1000mg, 6mL)
2025 Pharmacopoeia 2341 Method 2	Graphitized Carbon Cartridge (250mg, 3mL)
2025 Pharmacopoeia 2341 Method 4	Mixed Powder of Anhydrous Magnesium Sulfate and Anhydrous Sodium Acetate (4:1) 7.5g
2025 Pharmacopoeia 2341 Method 4	Anhydrous Magnesium Sulfate (900mg), N-Propylethylenediamine PSA (300mg), Octadecylsilane-Bonded Silica Gel (300mg), Silica Gel Slica (300mg, Graphitized Carbon Black (GB)) (90mg)
2025 Pharmacopoeia 2341 Method V	Mixed Powder of Anhydrous Magnesium Sulfate and Anhydrous Sodium Acetate (4:1) 7.5g
2025 Pharmacopoeia 2341 Method V	Anhydrous Magnesium Sulfate (900mg), N-Propylethylenediamine PSA (300mg), Octadecylsilane-Bonded Silica Gel (300mg), Silica Gel Silica (300mg, Graphitized Carbon Black (GCB)) (90mg)
2025 Pharmacopoeia 2341 Method V	Quechers Method (Anhydrous Magnesium Sulfate (1200mg), N-Propylethylenediamine PSA (300mg), Octadecylsilane-Bonded Silica Gel) Octadecylsilane-Bonded Silica Gel (100mg))
2025 Pharmacopoeia 2341 Method V	HLB 200mg/6mL
2025 Pharmacopoeia 2341 Method V	Graphitized carbon black amino composite solid phase extraction cartridge (500mg, 500mg, 6mL)
2025 Pharmacopoeia 2341 Method 6	Mixed Powder of Anhydrous Magnesium Sulfate and Anhydrous Sodium Acetate (4:1) 7.5g
2025 Pharmacopoeia 2341 Method 6	Anhydrous magnesium sulfate 900mg, N-propylethylenediamine PSA 300mg, Octadecylsilane bonded silica gel C18 300mg Silica, 100mg Graphitized carbon black GCB 45mg


Pharmacopoeia	Description
2025 Pharmacopoeia 2342 Method 1	Mixture of anhydrous magnesium sulfate, sodium chloride, sodium citrate, and disodium hydrogen citrate (4:1:1) powder :0.5)6.5g
2025 Pharmacopoeia 2342 Method 1	Anhydrous magnesium sulfate 900mg, Octadecylsilane bonded silica gel C18 450mg Silica Silica 100mg
2025 Pharmacopoeia 2342 Method 1	Anhydrous magnesium sulfate 900mg, Octadecylsilane bonded silica gel C18 450mg Silica, 100mg Graphitized carbon black GCB 45mg
2025 Pharmacopoeia 2342 Method 2	Octadecylsilane bonded silica gel C18 200mg Silica Silica 100mg (take 4mL of supernatant)
2025 Pharmacopoeia 2342 Method 2	Use 200 mg of octadecylsilane bonded silica gel C18, 100 mg of silica gel 20 mg of graphitized carbon black GCB (take 4 mL of supernatant)
2025 Pharmacopoeia 2342 Method 3	Use 200 mg of octadecylsilane bonded silica gel C18, 80 mg of silica gel 20 mg of graphitized carbon black GCB (take 4 mL of supernatant)
Pharmacopoeia 2025 Edition 2341, 2342 - Chromatographic Columns
Pharmacopoeia	Description
2025 Pharmacopoeia 2341 Method 1	OPTIMA-1701,032mmID,0.25μmFd,30m
2025 Pharmacopoeia 2341 Method 1	OPTIMA-5,032 mmID,025μmFd,30m
2025 Pharmacopoeia 2341 Method 1	OPTIMA-17,025mmID,0.25μmFd,30m
2025 Pharmacopoeia 2341 Method 1	OPTIMA-1,025 mmID,025μmFd,30m
2025 Pharmacopoeia 2341 Method 2	OPTMA-17,025mmID025μmFd,30m
2025 Pharmacopoeia 2341 Method 2	OPTIMA-5,025mmID,025μmFd,30m
2025 Pharmacopoeia 2341 Method 3	OPTIMA-5,032mmID,025μmFd,30m
2025 Pharmacopoeia 2341 Method 4 GC-MS	OPTIMA-5MS,0.25mmID,0.25μm Fd,30m
2025 Pharmacopoeia 2341 Method 4 LC-MS	EC150/3NUCLEOSHELLRP18,2.7 μm
2025 Pharmacopoeia 2341 Method 5 GC-MS	OPTIMA-17 MS,0.25mm ID,0.25μm Fd,30m
2025 Pharmacopoeia 2341 Method 5 LC-MS	Besil 1.8C18-H 100×2.1mm
2025 Pharmacopoeia 2341 Method 6 GC-MS	OPTIMA-17 MS,0.25mm ID,0.25μm Fd,30m
2025 Pharmacopoeia 2341 Method 6 LC-MS	Iron 1.8C18-H 100x2.1mm
2025 Pharmacopoeia 2341 Method 7	OPTIMA-624,0.25mm ID,1.,4 μm Fd,30 m
2025 Pharmacopoeia 2342 Plant growth regulators, Method 1	EC 150/3 NUCLEOSHELL RP 18,2.7 μm

Back

Hengyuan Fine Chemical`s Solutions for 2025 Pharmacopoeia 2341 & 2342 Pesticide Residue Testing

Categories

Archives

Hengyuan Fine Chemical`s Solutions for 2025 Pharmacopoeia 2341 & 2342 Pesticide Residue Testing