{"id":70399,"date":"2024-10-17T14:20:58","date_gmt":"2024-10-17T14:20:58","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d7731\/"},"modified":"2024-10-24T18:51:02","modified_gmt":"2024-10-24T18:51:02","slug":"astm-d7731","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d7731\/","title":{"rendered":"ASTM-D7731"},"content":{"rendered":"

ASTM D7731-11e1<\/h3>\n

Historical Standard: Standard Test Method for Determination of Dipropylene Glycol Monobutyl Ether and Ethylene Glycol Monobutyl Ether in Sea Water by Liquid Chromatography\/Tandem Mass Spectrometry (LC\/MS\/MS)<\/h4>\n
\n

ASTM D7731<\/h4>\n

Scope<\/strong><\/p>\n

1.1 This procedure covers the determination of Dipropylene Glycol Monobutyl Ether (DPGBE) and Ethylene Glycol Monobutyl Ether (EGBE) in sea water by direct injection using liquid chromatography (LC) and detection with tandem mass spectrometry (MS\/MS). This analyte is qualitatively and quantitatively determined by this method. This method adheres to selected reaction monitoring (SRM) mass spectrometry.<\/p>\n

1.2 The Detection Verification Level (DVL) and Reporting Range for DPGBE and EGBE are listed in Table 1.<\/p>\n

1.2.1 The DVL is required to be at a concentration at least 3 times below the Reporting Limit (RL) and have a signal\/noise ratio greater than 3:1. Fig. 1 and Fig. 2 display the signal\/noise ratio of the single reaction monitoring (SRM) transition.<\/p>\n

1.2.2 The reporting limit is the concentration of the Level 1 calibration standard as shown in Table 4 for DPGBE and EGBE, taking into account the 20% sample preparation dilution factor.<\/p>\n

Keywords<\/strong><\/p>\n

Dipropylene Glycol Monobutyl Ether; Ethylene Glycol Monobutyl Ether (EGBE); Liquid Chromatography; Mass Spectrometry; Water<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 13.060.50 (Examination of water for chemical substances)<\/p>\n

DOI:<\/strong> 10.1520\/D7731-11E01<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Terminology
TABLE 1 <\/td>\n<\/tr>\n
2<\/td>\nFIG. 1
FIG. 2 <\/td>\n<\/tr>\n
3<\/td>\nSummary of Test Method
Significance and Use
Interferences
Apparatus
Reagents and Materials <\/td>\n<\/tr>\n
4<\/td>\nHazards
Sampling
Preparation of Apparatus
Calibration and Standardization
TABLE 2 <\/td>\n<\/tr>\n
5<\/td>\nTABLE 3
TABLE 4 <\/td>\n<\/tr>\n
6<\/td>\nTABLE 5 <\/td>\n<\/tr>\n
7<\/td>\nProcedure
TABLE 6 <\/td>\n<\/tr>\n
8<\/td>\nCalculation or Interpretation of Results
Report
Precision and Bias
Keywords <\/td>\n<\/tr>\n
9<\/td>\nTABLE 7
TABLE 8
TABLE 9 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D7731-11e1 Standard Test Method for Determination of Dipropylene Glycol Monobutyl Ether and Ethylene Glycol Monobutyl Ether in Sea Water by Liquid Chromatography\/Tandem Mass Spectrometry (LC\/MS\/MS)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2011<\/td>\n9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":70400,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[216,2637],"product_tag":[],"class_list":{"0":"post-70399","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-060-50","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/70399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/70400"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=70399"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=70399"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=70399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}