ДСТУ ISO/TS 16780:2018 Качество воды. Определение содержания полихлорированных нафталинов (ПХН). Метод с использованием газовой хроматографии (ГХ) и масс-спектрометрии (МС) (ISO/TS 16780:2015, IDT)

ДСТУ ISO/TS 16780:2018
(ISO/TS 16780:2015, IDT)

Якість води. Визначення вмісту поліхлорованих нафталінів (ПХН).
Метод з використанням газової хроматографії (ГХ) та мас-спектрометрії (МС)

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

1 Scope

2 Normative references

3 Terms, definitions, and abbreviated terms

3.1 Terms and definitions

3.2 Abbreviated terms6 Principle

4 Principle

4.1 Extraction

4.2 Clean-up

4.3 Identification and quantification

4.4 Quality

5 Contamination and interferences

6 Reagents and standards

7 Apparatus and materials

8 Sample collection, preservation, storage and holding times

8.1 General

8.2 Storage times

9 Quality assurance and quality control

9.1 General

9.2 Spiking

9.3 Recovery of labelled compounds assessment

9.4 Method blanks

9.5 QC check sample

10 Calibration

10.1 Operating conditions

10.2 Mass spectrometer resolution

10.3 Ion abundance ratios, minimum levels, signal-to-noise ratios, and absolute retention times

10.4 Retention time

10.5 Column resolution performance check

10.6 Calibration by isotope dilution

10.7 Calibration by internal standard

10.8 Combined calibration

11 Sample preparation

11.1 General

11.2 Determination of solid particulate material

11.3 Preparation of aqueous samples containing 2 g/l of solid particulate material or less

12 Extraction

12.1 Separating funnel extraction of filtrates and of aqueous samples that are visibly absent of particles

12.2 Solid phase extraction (SPE) of samples containing less than 2 g/l suspended participate matter

12.3 Soxhlet or PLE extraction of filters or disks

12.4 Macro-concentration

12.5 Micro-concentration and solvent exchange

13 Extract clean-up

13.1 General

13.2 Back-extraction with acid and base

13.3 Gel permeation chromatography (GPC)

13.4 Silica clean-up

13.5 Carbon column

13.6 Florisil clean-up

13.7 Silver nitrate-silica column

14 HRGC-HRMS analysis

14.1 General

14.2 MS resolution

14.3 Calibration verification

14.4 GC resolution

14.5 Blank

15 Qualitative determination

16 Quantitative determination

16.1 Isotope dilution quantification

16.2 Internal standard quantification

16.3 Determination of labelled compound recovery

16.4 Concentration in sample

16.5 Results and reporting

17 Test report

Annex A (informative) Use of alternate mass spectrom etry detectors (LRMS, MS-MS)

Annex В (informative) Quality control and initial precision and recovery

Annex C (informative) Calculation of toxic equivalents

Annex D (informative) Pollution prevention

Annex E (informative) Waste management

Bibliography