How many types of headspace are there?

Headspace vials are a type of specialized sample container used in analytical chemistry, particularly in gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) techniques. These vials are designed to facilitate the analysis of volatile compounds in a sample.

During analysis, the headspace vial is heated to a specific temperature, which causes the volatile compounds in the sample to vaporize and equilibrate within the headspace. The gas phase in the headspace is then sampled and injected into the GC or GC-MS system for separation, identification, and quantification of the volatile compounds.

• what is 18 mm Screw headspace vials?

The term “18 mm Screw headspace vials” refers to a specific type of vial commonly used in laboratory settings for the storage and analysis of samples. Here’s a breakdown of its key features:

1. Size: The vials have a nominal diameter of 18 mm, which refers to the outer diameter of the vial.
2. Screw Cap: These vials are equipped with a screw cap closure mechanism. A screw cap has threads on its interior, allowing it to be securely fastened onto the vial with a twisting motion.
3. Headspace Vials: The term “headspace” refers to the area above the sample within the vial. Headspace vials are designed for the analysis of volatile compounds, where the gas phase above the liquid or solid sample is of interest.
4. Application: 18 mm Screw headspace vials are commonly used in gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analyses. These techniques are utilized to separate, identify, and quantify volatile organic compounds in various samples, such as environmental, pharmaceutical, and food samples.

It’s worth noting that the specifications of vials can vary depending on the manufacturer or specific application. Therefore, it’s always advisable to consult the product documentation or contact the supplier for precise details on the 18 mm Screw headspace vials you are referring to.

• what is 20 mm Crimp headspace vials?

20 mm Crimp headspace vials are a specific type of vial commonly used in laboratory settings for the storage and analysis of samples, particularly in gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) applications. Here are some key features of these vials:

1. Size: The vials have a nominal diameter of 20 mm, referring to the outer20 mm Crimp headspace vials are a specific type of vial commonly used in laboratory settings for the storage and analysis of samples, particularly in gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) applications. Here are some key features of these vials:
2. Size: The vials have a nominal diameter of 20 mm, referring to the outer diameter of the vial.
3. Crimp Cap: These vials are equipped with a crimp cap closure mechanism. A crimp cap is a metal cap that is crimped onto the vial using a crimping tool. This provides a secure seal for the vial.
4. Headspace Vials: Similar to the previous explanation, the term “headspace” refers to the gas phase above the sample within the vial. Headspace vials are specifically designed for the analysis of volatile compounds.
5. Application: 20 mm Crimp headspace vials are commonly used in GC and GC-MS analyses, where the separation, identification, and quantification of volatile organic compounds are of interest. These vials are especially suitable for samples that require a secure seal to prevent any loss or contamination of volatile compounds.

It’s important to note that the specifications of vials can vary among manufacturers and applications. Therefore, it’s always advisable to consult the product documentation or contact the supplier for precise details on the 20 mm Crimp headspace vials you are referring to.

Aijiren Technology Co., Ltd. is one of the leading manufacturers of automatic vails sampler and USP Class 1 HPLC glass sampler in China. We are an ISO 9001:2000 certified company and have registered our products under US-DMF. Aiji’s export markets include the United States, United Kingdom, Germany, Jordan, Iran, Egypt, Nepal, Thailand, Indonesia, Malaysia and Australia.

In addition to the production of autosampler samples in accordance with ISO 9187 and in accordance with ISO 8362, Aijiren also produces autosampler samples in accordance with customer-specific standards. Our R&D department will be eagerly waiting to learn more about your main glass packaging requirements and develop them on our side.