What are the uses of the JRY separatory funnel extractor?

The Jinrongyuan Separating Funnel Extractor (JRY-LLE) is a common sample preparation device widely used in chemical analysis, environmental monitoring, pharmaceuticals, and food testing. Below are some standard examples of separating funnel extraction techniques:

I. Environmental Monitoring Field:

1. U.S. Environmental Protection Agency (EPA) Methods:

EPA Method 3510C (Liquid-Liquid Extraction): Used to extract semi-volatile organic compounds (e.g., polycyclic aromatic hydrocarbons, phenols) from water samples, explicitly requiring extraction via a separatory funnel.

EPA Method 3520 (Sequential Liquid-Liquid Extraction): Suitable for extracting organic pollutants from water samples.

2. Chinese National Standards (GB):

GB 17378.4-2007 (Marine Monitoring Specifications): Liquid-liquid extraction is used for extracting organic pollutants from seawater.

HJ 834-2017 (Determination of Polycyclic Aromatic Hydrocarbons in Soil and Sediment): May involve separatory funnel extraction.

II. Food Testing Field:

1. Chinese National Standards (GB/T 5009 Series):

GB 5009.262-2016 (Determination of Solvent Residues in Food): Uses separatory funnel for extraction.

GB 5009.19-2008 (Determination of Organochlorine Pesticide Residues in Food): Separatory funnel extraction is a common step in traditional methods.

2. Codex Alimentarius (CODEX):

Certain pesticide residue testing methods (e.g., purification of lipid samples) involve separatory funnel extraction.

III. Pharmaceutical and Pharmacopoeia Fields:

1. United States Pharmacopeia (USP):

USP <731> (Dissolution Testing): Processing of certain dissolution media involves liquid-liquid extraction.

USP <467> (Organic Volatile Impurities): Separating funnels may be used in traditional methods.

2. Chinese Pharmacopoeia (ChP):

Extraction and purification steps for certain traditional Chinese medicine components may mention separatory funnel extraction.

IV. Petrochemical Field:

ASTM D3695-95 (Determination of Oil and Grease in Water): Uses separatory funnel extraction to obtain petroleum ether extracts.

ASTM D3328 (Liquid-Liquid Extraction Method for Organic Matter in Water).

V. Water Quality Testing:

ISO 5667-3:2018 (Water quality—Sampling and preservation): Some pretreatment methods involve separatory funnels.

ISO 6468:1996 (Determination of organochlorine pesticides): Separatory funnel extraction is used in traditional methods.

VI. Other Fields:

1. Cosmetic Testing (e.g., China's Cosmetic Safety Technical Specifications): Detection of certain prohibited ingredients (e.g., heavy metals, preservatives) involves liquid-liquid extraction.

2. Agricultural Testing (e.g., pesticide residues in soil): Some standard methods (e.g., NY/T 761-2008) utilize separatory funnels for purification.

With the proliferation of new technologies like solid-phase extraction (SPE), some standards may gradually reduce reliance on separatory funnel extraction or liquid-liquid extraction. However, due to the high throughput, simple operation, low noise, in-situ stratification, 360-degree rotation, in-situ washing, and and high cost-effectiveness, the Jinrongyuan separatory funnel extractor will continue to hold a significant market share. Specific testing should be confirmed by referring to relevant standard texts (e.g., EPA, ISO, GB) to determine the appropriate testing equipment and methods.