{"product_id":"apera-tisab-d-potassium-and-ammonium-ion-strength-adjustment-buffer-250-ml-ai1403","title":"Apera TISAB-D Potassium and Ammonium Ion Strength Adjustment Buffer, 250 mL (AI1403)","description":"\u003cdiv class=\"bts-current-page\" style=\"font-family:'Open Sans',sans-serif;box-sizing:border-box;max-width:1400px;margin:auto;width:100%;font-weight:300;line-height:1.75;color:#26332C;\"\u003e\n\u003cstyle\u003e.bts-current-page *{box-sizing:border-box}.bts-current-page img{max-width:100%}.bts-current-page a:focus-visible,.bts-current-page summary:focus-visible{outline:3px solid #245B45;outline-offset:3px}.bts-chooser[open]\u003esummary{border-bottom:1px solid #FF931A}@media(max-width:480px){.bts-related-card{gap:12px!important;padding:14px!important}.bts-related-card img{width:72px!important;height:72px!important;flex-basis:72px!important}}\u003c\/style\u003e\n\u003csection style=\"padding:clamp(22px,4vw,46px);border:1px solid #B7D0BF;background:#F1F7F3;border-radius:14px;\"\u003e\u003cdiv style=\"display:flex;flex-wrap:wrap;align-items:center;gap:28px;\"\u003e\n\u003cdiv style=\"flex:1 1 300px;min-width:0;\"\u003e\n\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eAPERA INSTRUMENTS \/ TISAB-D \/ AI1403\u003c\/p\u003e\n\u003ch2 style=\"font-size:clamp(23px,3.5vw,32px);line-height:1.25;color:#245B45;font-weight:600;margin:0 0 18px;\"\u003ePrepare the sample.\u003cbr\u003eMatch the ion method.\u003c\/h2\u003e\n\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eCondition potassium or ammonium samples using the buffer specified for your ion-selective electrode method. Apera TISAB-D helps adjust solution conditions and reduce interfering-ion effects before calibration and measurement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cfigure style=\"flex:1 1 300px;min-width:0;margin:0;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ai1403-square-20261019.webp?v=1792441770\" target=\"_blank\" rel=\"noopener\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ai1403-square-20261019.webp?v=1792441770\" alt=\"Apera TISAB-D Potassium and Ammonium Ion Strength Adjustment Buffer, 250 mL (AI1403)\" width=\"1600\" height=\"1600\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 48px), 560px\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ai1403-square-20261019.webp?v=1792441770\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ai1403-square-20261019.webp?v=1792441770\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ai1403-square-20261019.webp?v=1792441770\u0026amp;width=1000 1000w\" style=\"width:100%;height:auto;max-width:520px;object-fit:contain;\"\u003e\u003c\/a\u003e\u003cfigcaption style=\"font-size:.85rem;line-height:1.6;\"\u003eTISAB-D · 250 mL.\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdetails class=\"bts-chooser\" style=\"border:1px solid #FF931A;border-radius:10px;margin:24px 0;overflow:hidden;\"\u003e\u003csummary style=\"padding:20px;background:#FF931A;color:#172b4d;cursor:pointer;font-size:1.15rem;font-weight:600;\"\u003eExplore compatible ion measurement systems\u003c\/summary\u003e\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:16px;padding:20px;\"\u003e\n\u003ca class=\"bts-related-card\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-instruments-pion400-k-portable-ph-potassium-ion-meter-kit\" style=\"display:flex;align-items:center;gap:16px;flex:1 1 280px;min-width:0;padding:18px;border:1px solid #DCE6DF;border-radius:10px;color:#26332C;text-decoration:none;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-pion400-hero-20261017-mfr_ab8558c5-0016-4cab-b9cc-053a6b679659.webp?v=1792275961\u0026amp;width=180\" alt=\"Apera Instruments PION400-K Portable pH\/Potassium Ion Meter Kit\" width=\"90\" height=\"90\" loading=\"lazy\" style=\"width:90px;height:90px;object-fit:contain;flex:0 0 90px;\"\u003e\u003cspan style=\"min-width:0;\"\u003e\u003cstrong style=\"display:block;color:#245B45;line-height:1.4;\"\u003eApera Instruments PION400-K Portable pH\/Potassium Ion Meter Kit\u003c\/strong\u003e\u003cspan style=\"display:block;line-height:1.65;margin:8px 0;\"\u003eReview the exact electrode, preparation method and system configuration.\u003c\/span\u003e\u003cspan style=\"font-weight:600;\"\u003eView product →\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"bts-related-card\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-instruments-pion400-nh-portable-ph-ammonium-ion-tan-meter-kit\" style=\"display:flex;align-items:center;gap:16px;flex:1 1 280px;min-width:0;padding:18px;border:1px solid #DCE6DF;border-radius:10px;color:#26332C;text-decoration:none;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-pion400-hero-20261017-mfr_711cb4b8-e196-4ff8-9961-45572f5c2abe.webp?v=1792275961\u0026amp;width=180\" alt=\"Apera Instruments PION400-NH Portable pH\/Ammonium Ion\/TAN Meter Kit\" width=\"90\" height=\"90\" loading=\"lazy\" style=\"width:90px;height:90px;object-fit:contain;flex:0 0 90px;\"\u003e\u003cspan style=\"min-width:0;\"\u003e\u003cstrong style=\"display:block;color:#245B45;line-height:1.4;\"\u003eApera Instruments PION400-NH Portable pH\/Ammonium Ion\/TAN Meter Kit\u003c\/strong\u003e\u003cspan style=\"display:block;line-height:1.65;margin:8px 0;\"\u003eReview the exact electrode, preparation method and system configuration.\u003c\/span\u003e\u003cspan style=\"font-weight:600;\"\u003eView product →\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003csection style=\"padding:clamp(24px,4vw,42px) 0;border-bottom:1px solid #DCE6DF;\"\u003e\u003ch2 style=\"font-size:clamp(23px,3.5vw,32px);line-height:1.25;color:#245B45;font-weight:600;margin:0 0 18px;\"\u003eWhy choose this buffer?\u003c\/h2\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:16px;\"\u003e\n\u003cdiv style=\"flex:1 1 230px;padding:22px;border:1px solid #DCE6DF;border-radius:10px;\"\u003e\n\u003ch3 style=\"color:#245B45;font-size:1.1rem;\"\u003ePotassium and ammonium methods\u003c\/h3\u003e\n\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eSelect TISAB-D when the exact ISE procedure calls for this formulation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 230px;padding:22px;border:1px solid #DCE6DF;border-radius:10px;\"\u003e\n\u003ch3 style=\"color:#245B45;font-size:1.1rem;\"\u003eMatched sample preparation\u003c\/h3\u003e\n\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003ePrepare standards and samples according to the same measurement method.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 230px;padding:22px;border:1px solid #DCE6DF;border-radius:10px;\"\u003e\n\u003ch3 style=\"color:#245B45;font-size:1.1rem;\"\u003e250 mL bottle\u003c\/h3\u003e\n\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eA clearly identified AI1403 supply for replenishing the buffer used in the supported workflow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"padding:clamp(24px,4vw,42px) 0;border-bottom:1px solid #DCE6DF;\"\u003e\u003ch2 style=\"font-size:clamp(23px,3.5vw,32px);line-height:1.25;color:#245B45;font-weight:600;margin:0 0 18px;\"\u003eUse the correct method.\u003c\/h2\u003e\n\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eUse the dose and preparation procedure in the exact meter\/electrode manual for your analyte and sample. Potassium and ammonium workflows can have different preparation requirements; do not apply one universal ratio to every method. Mix as directed before calibration and measurement.\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eReview \u003ca style=\"color:#245B45;text-decoration:underline;font-weight:600;\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-instruments-pion400-k-portable-ph-potassium-ion-meter-kit\"\u003eApera Instruments PION400-K Portable pH\/Potassium Ion Meter Kit\u003c\/a\u003e or \u003ca style=\"color:#245B45;text-decoration:underline;font-weight:600;\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-instruments-pion400-nh-portable-ph-ammonium-ion-tan-meter-kit\"\u003eApera Instruments PION400-NH Portable pH\/Ammonium Ion\/TAN Meter Kit\u003c\/a\u003e for the supported system configuration.\u003c\/p\u003e\u003c\/section\u003e\u003csection style=\"padding:clamp(24px,4vw,42px) 0;border-bottom:1px solid #DCE6DF;\"\u003e\u003ch2 style=\"font-size:clamp(23px,3.5vw,32px);line-height:1.25;color:#245B45;font-weight:600;margin:0 0 18px;\"\u003eWhat you are ordering.\u003c\/h2\u003e\n\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003e250 mL bottle of TISAB-D. Meters, electrodes and calibration standards are separate.\u003c\/p\u003e\u003c\/section\u003e\u003csection style=\"padding:clamp(24px,4vw,42px) 0;border-bottom:1px solid #DCE6DF;\"\u003e\u003ch2 style=\"font-size:clamp(23px,3.5vw,32px);line-height:1.25;color:#245B45;font-weight:600;margin:0 0 18px;\"\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdetails class=\"bts-faq\" style=\"border:1px solid #DCE6DF;border-radius:8px;margin:10px 0;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.5;\"\u003eWhat is TISAB-D used for?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 16px;\"\u003e\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eIt is an ionic-strength adjustment buffer for supported potassium and ammonium ion-selective electrode methods.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-faq\" style=\"border:1px solid #DCE6DF;border-radius:8px;margin:10px 0;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.5;\"\u003eIs this an ion calibration standard?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 16px;\"\u003e\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eNo. It conditions the measurement solution. Use the analyte standards specified in the meter\/electrode calibration method.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-faq\" style=\"border:1px solid #DCE6DF;border-radius:8px;margin:10px 0;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.5;\"\u003eCan I use it for potassium and ammonium?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 16px;\"\u003e\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eApera specifies both applications. Follow the exact method for the ion and sample you are measuring.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-faq\" style=\"border:1px solid #DCE6DF;border-radius:8px;margin:10px 0;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.5;\"\u003eHow much should I add?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 16px;\"\u003e\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eUse the dose in the exact meter and electrode method. Sample preparation requirements can differ, so a single ratio should not be assumed for every workflow.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-faq\" style=\"border:1px solid #DCE6DF;border-radius:8px;margin:10px 0;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.5;\"\u003eWhat bottle size is supplied?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 16px;\"\u003e\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eThis AI1403 configuration is a 250 mL bottle.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-faq\" style=\"border:1px solid #DCE6DF;border-radius:8px;margin:10px 0;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.5;\"\u003eIs this a pH calibration buffer?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 16px;\"\u003e\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eNo. It is an ion measurement preparation reagent, not a replacement for pH calibration buffers.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-faq\" style=\"border:1px solid #DCE6DF;border-radius:8px;margin:10px 0;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.5;\"\u003eCan it replace TISAB-B for fluoride?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 16px;\"\u003e\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eSelect the formulation required by the fluoride electrode method. TISAB-D is specified for potassium and ammonium applications.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"bts-faq\" style=\"border:1px solid #DCE6DF;border-radius:8px;margin:10px 0;\"\u003e\u003csummary style=\"padding:16px;cursor:pointer;font-weight:600;line-height:1.5;\"\u003eDoes this include a meter or ion electrode?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 16px;\"\u003e\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eNo. This listing is for the buffer bottle. Compatible instruments, ion electrodes and standards are separate.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/section\u003e\u003csection style=\"padding:clamp(24px,4vw,42px) 0;border-bottom:1px solid #DCE6DF;\"\u003e\u003ch2 style=\"font-size:clamp(23px,3.5vw,32px);line-height:1.25;color:#245B45;font-weight:600;margin:0 0 18px;\"\u003eSelect the right supply.\u003c\/h2\u003e\n\u003cp style=\"font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eConfirm AI1403 and the 250 mL configuration, then return to the price and ordering controls.\u003c\/p\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Apera Instruments","offers":[{"title":"Default Title","offer_id":53028749050154,"sku":"BTS-AI1403","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ai1403-square-20261019.webp?v=1792441770","url":"https:\/\/bluetigerscientific.com\/products\/apera-tisab-d-potassium-and-ammonium-ion-strength-adjustment-buffer-250-ml-ai1403","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}