Tengzhou Zhongkepu is a professional manufacturer of gas chromatographs and portable chromatography equipment. The equipment produced complies with national standards and is favored and recognized by users in the market. The following are the detailsAnalysis of Acrylamide in Polyacrylamide (PAM) by Gas ChromatographyDetailed analysis of price, usage method, instrument structure, and service system:

【Analysis and Introduction: Polyacrylamide (PAM) is a widely used and highly effective water treatment flocculant in the world. In China, urban sewage treatment plants generally use the addition of PAM for sludge dewatering treatment. Due to the fact that residual acrylamide (AM) in PAM is a carcinogenic and neurotoxic substance [1-2], the World Health Organization's "Environmental Health Standard 49- Acrylamide" strictly controls this by not exceeding 1 mg per liter of water. However, the existing "Pollutant Discharge Standards for Urban Sewage Treatment" (GB 18918-2002) do not limit the amount of AM in sludge supernatant, nor have corresponding detection methods been established.

Instrument configuration and reagents

Chromatographic conditions

(1) Gasification chamber temperature: 230 ℃.

(2) Column temperature: 165 ℃.

(3) Detector temperature: 230 ～ 240 ℃

【Performance characteristics of GC-2020 gas chromatograph

1. Adopting320 x 240lattice5.7An inch large screen LCD Chinese display, real-time display of various temperatures and operating conditions, clear and intuitive content, truly realizing human-machine dialogue;
2Power on self-test, wide range self diagnostic function, can accurately determine the fault location and alarm;
3Six independent temperature controls (vaporization chamber and capillary vaporization chamber can be independently controlled), Five level program heating function;
4Overtemperature Protection function: If any circuit exceeds the set temperature, the instrument will automatically power off and sound an alarm;
5The vertical heating device of * makes sample vaporization more reliable, reduces the heat radiation generated in the vaporization chamber to the minimum, and ensures minimal temperature deviation inside the column box;
6Intelligent fuzzy control rear door opening system, automatically tracks temperature and dynamically adjusts The angle of the air door can achieve precise temperature control even near room temperature;
7Configure filling column head injection, glass lining injection, with diaphragm cleaning Functional capillary diversion/Non split injection device and capable of installing gas injectors;
8High precision dual stable gas path, capable of installing four types of detectors simultaneously;
9Optional electronic flow pressure display system with built-in workstation device.

Temperature control indicators
1.Temperature control range: room temperature 5℃～400℃ increment0.1℃
2.Temperature control accuracy: superior to±0.01℃

Program heating: Five step interval constant temperature time0～999minincrement0.1minTemperature increment0.1℃
Heating rate:200Greatest at ℃40℃/min 200℃Up to the biggest20℃/min

Main technical specifications of the detector

Hydrogen flame ionization detector（FID）

（1）Cylindrical collection electrode structure design, quartz nozzle, responsive*

（2）Detection limit:≤8×10g/s（HEXADECANE/isooctane）

（3）Baseline noise:≤2×10A

（4）Baseline drift:≤2×10A/30min

（5）Linear:≥10