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usa decanter centrifuge manufacturers

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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rsdzd@pyzyrsd.com

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usa decanter centrifuge manufacturers
Quality by Design (QbD) for Topical Dermatologic Products
Quality by Design (QbD) for Topical Dermatologic Products

RSD, is not more than 5% Needed for clinical effectiveness Physical Attributes ... ,Screening, DOE to Identify Critical Process Parameters •Following the initial risk assessment, a ,screening, design experiment is used to ... ,API, particle size) * ...

Novel ‘Dilute-and-Shoot’ Liquid Chromatography–Tandem Mass ...
Novel ‘Dilute-and-Shoot’ Liquid Chromatography–Tandem Mass ...

By applying the method described above to the strict monitoring of a group of patients where the dose, time administered and time of sample collection are all known, it may be possible to develop cutoff concentrations for each drug in urine to determine if a patient is adherent or not, similar to other semi-quantitative urine ,screening, assays (e.g., drugs of abuse ,screening,).

(PDF) LIQUID CHROMATOGRAPHY METHOD TO ANALYZE …
(PDF) LIQUID CHROMATOGRAPHY METHOD TO ANALYZE …

Test, solution: Transferred 2.0 mL of acetonitrile and 1.0 mL of derivatization reagent solution in to a 10 mL volumetric flask. 5.0 mL of filtered ,test, stock solution were added, and

Determination of Elemental Impurities – Challenges of a ...
Determination of Elemental Impurities – Challenges of a ...

CHALLENGES OF A ,SCREENING, METHOD Method must provide • Valid information about APIs, Excipients and Finished Products • Applicability for a broad variability of sample materials • Acceptance criteria from EP 5.20 / USP <233> • A validated basis 3 SGS LIFE SCIENCE SERVICES – CPHI/ICSE Madrid October 2015 • A validated basis Challenges • Interferences from different sample materials

Quality by Design (QbD) for Topical Dermatologic Products
Quality by Design (QbD) for Topical Dermatologic Products

RSD, is not more than 5% Needed for clinical effectiveness Physical Attributes ... ,Screening, DOE to Identify Critical Process Parameters •Following the initial risk assessment, a ,screening, design experiment is used to ... ,API, particle size) * ...

Automated Powder Dosing in the Life Science Laboratory ...
Automated Powder Dosing in the Life Science Laboratory ...

Ten milligrams of ,API, were dispensed automatically into nine 20-mL brown glass vials. Automation allowed 10 mg to be accurately dispensed with an ,RSD, of only 0.89%. Next, the solvent—a 80:20 acetonitrile:water mixture—was added gravimetrically based on the exact weight of the ,API, dispensed. The ,RSD, of the achieved concentration was 0.001%.

(PDF) LIQUID CHROMATOGRAPHY METHOD TO ANALYZE …
(PDF) LIQUID CHROMATOGRAPHY METHOD TO ANALYZE …

Test, solution: Transferred 2.0 mL of acetonitrile and 1.0 mL of derivatization reagent solution in to a 10 mL volumetric flask. 5.0 mL of filtered ,test, stock solution were added, and

Determination of Elemental Impurities – Challenges of a ...
Determination of Elemental Impurities – Challenges of a ...

CHALLENGES OF A ,SCREENING, METHOD Method must provide • Valid information about APIs, Excipients and Finished Products • Applicability for a broad variability of sample materials • Acceptance criteria from EP 5.20 / USP <233> • A validated basis 3 SGS LIFE SCIENCE SERVICES – CPHI/ICSE Madrid October 2015 • A validated basis Challenges • Interferences from different sample materials

Simultaneous Determination of 15 Sulfonate Ester ...
Simultaneous Determination of 15 Sulfonate Ester ...

Recoveries of the sulfonic esters from three drug matrices were observed in the range of 91.6∼109.0% with an ,RSD, of not greater than 17.9% at the concentration of the LOQ and in the range of 90.4%∼105.2% with an ,RSD, of not greater than 7.1% at the concentration of 50 ng/mL for the methanesulfonates and 10 ng/mL for the benzenesulfonates and p -toluenesulfonates.

Simultaneous Determination of 15 Sulfonate Ester ...
Simultaneous Determination of 15 Sulfonate Ester ...

Recoveries of the sulfonic esters from three drug matrices were observed in the range of 91.6∼109.0% with an ,RSD, of not greater than 17.9% at the concentration of the LOQ and in the range of 90.4%∼105.2% with an ,RSD, of not greater than 7.1% at the concentration of 50 ng/mL for the methanesulfonates and 10 ng/mL for the benzenesulfonates and p -toluenesulfonates.

Rapid Screening of Amphetamine Drugs in Urine by Positive ...
Rapid Screening of Amphetamine Drugs in Urine by Positive ...

and high-throughput ,screening,. Only two product ions were used for this analysis because ,amphetamine, and methamphetamine only give two intense product ions (Figure 4, Table 2) while ephedrine, MDA, MDMA, and MDEA produce multiple intense product ions (Table 2). Run-to-run retention time is very reproducible with a <1.4% ,RSD,.

Study on a noninvasive method for rapid screening Human ...
Study on a noninvasive method for rapid screening Human ...

although the relative standard deviation (,RSD,) value showed a little increasing trend at low HSA concentration level. In conclusion, the method was proved to be feasible and e±cient for ,screening, HSA injections, especially on its ,screening, speed and the consideration of glass containers.

Automated Powder Dosing in the Life Science Laboratory ...
Automated Powder Dosing in the Life Science Laboratory ...

Ten milligrams of ,API, were dispensed automatically into nine 20-mL brown glass vials. Automation allowed 10 mg to be accurately dispensed with an ,RSD, of only 0.89%. Next, the solvent—a 80:20 acetonitrile:water mixture—was added gravimetrically based on the exact weight of the ,API, dispensed. The ,RSD, of the achieved concentration was 0.001%.

Novel ‘Dilute-and-Shoot’ Liquid Chromatography–Tandem Mass ...
Novel ‘Dilute-and-Shoot’ Liquid Chromatography–Tandem Mass ...

By applying the method described above to the strict monitoring of a group of patients where the dose, time administered and time of sample collection are all known, it may be possible to develop cutoff concentrations for each drug in urine to determine if a patient is adherent or not, similar to other semi-quantitative urine ,screening, assays (e.g., drugs of abuse ,screening,).

Study on a noninvasive method for rapid screening Human ...
Study on a noninvasive method for rapid screening Human ...

although the relative standard deviation (,RSD,) value showed a little increasing trend at low HSA concentration level. In conclusion, the method was proved to be feasible and e±cient for ,screening, HSA injections, especially on its ,screening, speed and the consideration of glass containers.

The VetDrugs Explorer Collection: screening and ...
The VetDrugs Explorer Collection: screening and ...

atmospheric pressure ionization (,API,) settings are shown in Table 3. For fast method implementation, details of the complete method including the LC and SRM settings are included in the VetDrugs Explorer Collection. Injection Volume 2 µL Column Temperature 40 °C Analytical Column Accucore VDX, 100 × 2.1 mm × 2.6 µm Run Time 17 minutes

QbD-Based Development and Validation of a Stability ...
QbD-Based Development and Validation of a Stability ...

System suitability ,test, of the chromatography system was performed by injecting six replicate injections of standard solution 25 µg/mL. Prior to sample analysis, percent relative standard deviation (% ,RSD,) of standard area and retention time for six suitability injections were determined and accepted below 2.0%.

QbD-Based Development and Validation of a Stability ...
QbD-Based Development and Validation of a Stability ...

System suitability ,test, of the chromatography system was performed by injecting six replicate injections of standard solution 25 µg/mL. Prior to sample analysis, percent relative standard deviation (% ,RSD,) of standard area and retention time for six suitability injections were determined and accepted below 2.0%.

The VetDrugs Explorer Collection: screening and ...
The VetDrugs Explorer Collection: screening and ...

atmospheric pressure ionization (,API,) settings are shown in Table 3. For fast method implementation, details of the complete method including the LC and SRM settings are included in the VetDrugs Explorer Collection. Injection Volume 2 µL Column Temperature 40 °C Analytical Column Accucore VDX, 100 × 2.1 mm × 2.6 µm Run Time 17 minutes

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Road West, North Branch, Jingkai Road, Puyang City